➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1` #14575

tiangolo · 2025-12-20T13:34:45Z

➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's pydantic.v1

…tic v1

github-actions · 2025-12-20T13:38:34Z

📝 Docs preview

Last commit 318473a at: https://52b4db0b.fastapitiangolo.pages.dev

Modified Pages

codspeed-hq · 2025-12-20T13:43:47Z

CodSpeed Performance Report

Merging #14575 will degrade performance by 23.27%

_{Comparing nopv1-2 (318473a) with master (d70ed5e)¹}

Summary

❌ 2 (👁 2) regressions
✅ 38 untouched

Benchmarks breakdown

	Benchmark	`BASE`	`HEAD`	Efficiency
👁	`test_sync_return_large_model_with_response_model[pydantic-v1]`	517.8 ms	673.9 ms	-23.16%
👁	`test_async_return_large_model_with_response_model[pydantic-v1]`	516.5 ms	673.1 ms	-23.27%

No successful run was found on master (5c7dceb) during the generation of this report, so d70ed5e was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

potiuk · 2025-12-21T08:15:22Z

Hey @tiangolo and team. Another early warning - fast-api 0.126.0 broke Airflow tests (a lot of them). We are using Pydantic 2 not 1, yet it seems that this change causes some of our Pydantic Models to fail to get serialized.

For example (but we have many tests failing- https://github.com/apache/airflow/actions/runs/20404265041/job/58632121997#step:8:52189) we got this error:

FAILED airflow-core/tests/unit/api_fastapi/execution_api/versions/head/test_connections.py::TestGetConnection::test_connection_get_from_db - fastapi.exceptions.ResponseValidationError: 1 validation error:
  {'type': 'string_type', 'loc': ('response', 'schema'), 'msg': 'Input should be a valid string', 'input': <bound method BaseModel.schema of <class 'airflow.api_fastapi.execution_api.datamodels.connection.ConnectionResponse'>>}

  File "/usr/python/lib/python3.10/site-packages/cadwyn/structure/versions.py", line 53, in get_connection
    GET /execution/connections/{connection_id}

And ConnectionRespose is defined like that (where BaseModel is Pydantic v2 model.

class ConnectionResponse(BaseModel):
    """
    Connection serializer for responses.
    """

    connection_id: Annotated[str, Field(title="Connection Id")]
    conn_type: Annotated[str, Field(title="Conn Type")]
    description: Annotated[str | None, Field(title="Description")] = None
    host: Annotated[str | None, Field(title="Host")] = None
    login: Annotated[str | None, Field(title="Login")] = None
    schema_: Annotated[str | None, Field(alias="schema", title="Schema")] = None
    port: Annotated[int | None, Field(title="Port")] = None
    password: Annotated[str | None, Field(title="Password")] = None
    extra: Annotated[str | None, Field(title="Extra")] = None
    team_name: Annotated[str | None, Field(title="Team Name")] = None

It could also be due to cadwyn wrapping - here is the relevant stack trace:

    |   File "/usr/python/lib/python3.10/site-packages/fastapi/routing.py", line 117, in app
    |     await wrap_app_handling_exceptions(app, request)(scope, receive, send)
    |   File "/usr/python/lib/python3.10/site-packages/starlette/_exception_handler.py", line 53, in wrapped_app
    |     raise exc
    |   File "/usr/python/lib/python3.10/site-packages/starlette/_exception_handler.py", line 42, in wrapped_app
    |     await app(scope, receive, sender)
    |   File "/usr/python/lib/python3.10/site-packages/fastapi/routing.py", line 103, in app
    |     response = await f(request)
    |   File "/usr/python/lib/python3.10/site-packages/fastapi/routing.py", line 446, in app
    |     content = await serialize_response(
    |   File "/usr/python/lib/python3.10/site-packages/fastapi/routing.py", line 272, in serialize_response
    |     raise ResponseValidationError(
    | fastapi.exceptions.ResponseValidationError: 1 validation error:
    |   {'type': 'string_type', 'loc': ('response', 'schema'), 'msg': 'Input should be a valid string', 'input': <bound method BaseModel.schema of <class 'airflow.api_fastapi.execution_api.datamodels.connection.ConnectionResponse'>>}
    |
    |   File "/usr/python/lib/python3.10/site-packages/cadwyn/structure/versions.py", line 53, in get_connection
    |     GET /execution/connections/{connection_id}

We are looking at the root cause and minimal reproducer - but this is what we see immediately.

This is bisectable to 0.126.0 - it works fine with 0.125.0.

The 0.126.0 dropped Pydantic v1 but also likely introduced a bug on how Pydantic models get serialized. The comment about it: fastapi/fastapi#14575 (comment) We limit fast-api to exclude that version, hoping that 0.126.1 will fix it.

potiuk · 2025-12-21T09:24:04Z

OK. I got a minimum reproducer (with a help of copilot) - seems that it is related to schema aliasing and Cadwyn:

"""
Minimal reproducer for FastAPI 0.126.0 issue with Field alias 'schema' when using Cadwyn.

ISSUE DESCRIPTION:
------------------
FastAPI 0.126.0 introduced a breaking change where it expects response model metadata
with a 'schema' key to be a string (JSON schema), but Pydantic's Field(alias="schema")
creates a bound method BaseModel.schema that conflicts with this expectation.

This issue specifically manifests when using Cadwyn for API versioning, as Cadwyn
processes response models differently than vanilla FastAPI.

ENVIRONMENT:
------------
- FastAPI: 0.126.0 (issue occurs)
- FastAPI: <0.126.0 (works fine)
- Cadwyn: Any version
- Pydantic: v2

ERROR MESSAGE:
--------------
  fastapi.exceptions.ResponseValidationError: 1 validation error:
    {'type': 'string_type', 'loc': ('response', 'schema'), 'msg': 'Input should be a valid string', 
     'input': <bound method BaseModel.schema of <class 'ConnectionResponse'>>}

REPRODUCTION:
-------------
Run this script with FastAPI 0.126.0 installed:
  python test_fastapi_reproducer.py

EXPECTED RESULT:
----------------
Both tests should pass (works with vanilla FastAPI, fails with Cadwyn + FastAPI 0.126.0)

WORKAROUND:
-----------
Option 1: Downgrade FastAPI to <0.126.0
Option 2: Rename the field to avoid 'schema' alias (e.g., use 'db_schema' instead)
Option 3: Wait for FastAPI or Cadwyn fix
"""

from cadwyn import Cadwyn, VersionBundle, Version
from fastapi import APIRouter
from fastapi.testclient import TestClient
from pydantic import BaseModel, Field


# Minimal model that reproduces the issue
class ConnectionResponse(BaseModel):
    """Response model with 'schema' field aliased from 'schema_'."""
    
    conn_id: str
    conn_type: str
    schema_: str | None = Field(alias="schema")  # This causes the issue in FastAPI 0.126.0


# Create router
router = APIRouter()


@router.get("/connection/{connection_id}")
def get_connection(connection_id: str) -> ConnectionResponse:
    """Endpoint that returns a ConnectionResponse."""
    return ConnectionResponse(
        conn_id=connection_id,
        conn_type="http",
        schema="https"
    )


# Create version bundle (required by Cadwyn)
versions = VersionBundle(
    Version("2025-01-01")
)


def test_fastapi_cadwyn_schema_alias_bug():
    """Test that reproduces the FastAPI 0.126.0 bug with Cadwyn."""
    # Create Cadwyn app (API versioning middleware)
    app = Cadwyn(
        versions=versions,
        api_version_default_value="2025-01-01",
    )
    
    # Include the router in the versioned app
    app.generate_and_include_versioned_routers(router)
    
    client = TestClient(app)
    
    # This will fail with FastAPI 0.126.0 due to schema alias conflict
    response = client.get("/connection/test_conn")
    
    print(f"Status code: {response.status_code}")
    if response.status_code == 200:
        print(f"Response: {response.json()}")
    else:
        print(f"Error: {response.text}")


def test_simple_fastapi_no_cadwyn():
    """Test without Cadwyn to show it works in simple FastAPI."""
    from fastapi import FastAPI
    
    app = FastAPI()
    app.include_router(router)
    
    client = TestClient(app)
    response = client.get("/connection/test_conn")
    
    print(f"\nSimple FastAPI (no Cadwyn):")
    print(f"Status code: {response.status_code}")
    if response.status_code == 200:
        print(f"Response: {response.json()}")


if __name__ == "__main__":
    import fastapi
    import cadwyn
    
    print("ENVIRONMENT INFO:")
    print("=" * 70)
    print(f"FastAPI version: {fastapi.__version__}")
    print(f"Cadwyn version: {cadwyn.__version__}")
    
    print("\n" + "=" * 70)
    print("Testing FastAPI with Cadwyn and schema alias field...")
    print("=" * 70)
    
    # Test without Cadwyn first (should work)
    try:
        test_simple_fastapi_no_cadwyn()
        print("✅ Simple FastAPI test passed")
    except Exception as e:
        print(f"❌ Simple FastAPI test failed: {type(e).__name__}: {e}")
    
    print("\n" + "=" * 70)
    print("Testing with Cadwyn...")
    print("=" * 70)
    
    # Test with Cadwyn (may fail in FastAPI 0.126.0)
    try:
        test_fastapi_cadwyn_schema_alias_bug()
        print("\n✅ Cadwyn test passed - no FastAPI bug detected")
    except Exception as e:
        print(f"\n❌ Cadwyn test failed with error:")
        print(f"   {type(e).__name__}: {e}")
        print("\nThis is the expected failure with FastAPI >=0.126.0")
        print("\nFull traceback:")
        import traceback
        traceback.print_exc()

The alias and cadwyn does not play well together, and since Pydantic v2 does not use the `schema` any more, we can get rid of the alias. This caused the issue with 0.126.0 version of fastapi: fastapi/fastapi#14575 (comment)

potiuk · 2025-12-21T10:52:00Z

Also - there is another issue showing up in our tests. It seems that when RootModel is used in response with Cadwyn, fastapi 0.126.0 also does not properly serialize the model (0.125.0 does)

Minimal reproducer:

"""
Ultra-minimal FastAPI 0.126.0 + Cadwyn + RootModel reproducer.

This is a standalone script that demonstrates the bug without any Airflow dependencies.

Requirements:
    pip install fastapi cadwyn httpx pydantic

Run:
    python standalone_xcom_reproducer.py

Expected with FastAPI 0.126.0:
    - Vanilla FastAPI test: PASS
    - FastAPI + Cadwyn test: FAIL (ResponseValidationError)
"""

from cadwyn import Cadwyn, Version, VersionBundle
from fastapi import APIRouter, FastAPI
from fastapi.testclient import TestClient
from pydantic import JsonValue, RootModel


class MinimalRootModel(RootModel):
    """Minimal RootModel that triggers the bug."""
    root: JsonValue


def test_vanilla_fastapi():
    """Test with plain FastAPI - this works."""
    app = FastAPI()
    
    @app.get("/value")
    def get_value() -> MinimalRootModel:
        return MinimalRootModel(root=42)
    
    client = TestClient(app)
    response = client.get("/value")
    
    assert response.status_code == 200
    assert response.json() == 42
    return True


def test_with_cadwyn():
    """Test with Cadwyn - this fails in FastAPI 0.126.0."""
    router = APIRouter()
    
    @router.get("/value")
    def get_value() -> MinimalRootModel:
        return MinimalRootModel(root=42)
    
    versions = VersionBundle(Version("2025-01-01"))
    app = Cadwyn(versions=versions, api_version_default_value="2025-01-01")
    app.generate_and_include_versioned_routers(router)
    
    client = TestClient(app)
    response = client.get("/value")
    
    assert response.status_code == 200
    assert response.json() == 42
    return True


if __name__ == "__main__":
    import sys
    
    print("Testing FastAPI RootModel with Cadwyn")
    print("=" * 60)
    print(f"FastAPI: {__import__('fastapi').__version__}")
    print(f"Pydantic: {__import__('pydantic').__version__}")
    print(f"Cadwyn: {__import__('cadwyn').__version__}")
    print("=" * 60)
    
    # Test 1: Vanilla FastAPI
    try:
        test_vanilla_fastapi()
        print("✅ Vanilla FastAPI: PASS")
        vanilla_ok = True
    except Exception as e:
        print(f"❌ Vanilla FastAPI: FAIL - {e}")
        vanilla_ok = False
    
    # Test 2: FastAPI + Cadwyn
    try:
        test_with_cadwyn()
        print("✅ FastAPI + Cadwyn: PASS")
        cadwyn_ok = True
    except Exception as e:
        print(f"❌ FastAPI + Cadwyn: FAIL")
        print(f"   Error: {type(e).__name__}: {e}")
        cadwyn_ok = False
    
    print("=" * 60)
    
    if vanilla_ok and not cadwyn_ok:
        print("\n🐛 BUG REPRODUCED!")
        print("RootModel works with vanilla FastAPI but fails with Cadwyn")
        sys.exit(1)
    elif not vanilla_ok:
        print("\n⚠️  Vanilla FastAPI also fails")
        sys.exit(1)
    else:
        print("\n✅ All tests passed - bug not present or fixed")
        sys.exit(0)

johnslavik · 2025-12-21T13:02:13Z

@potiuk A workaround is to also .model_dump(by_alias=True) in your endpoint.

johnslavik · 2025-12-21T14:49:04Z

fastapi/routing.py

 ) -> Any:
-    if isinstance(res, BaseModel):
-        read_with_orm_mode = getattr(_get_model_config(res), "read_with_orm_mode", None)
+    if isinstance(res, may_v1.BaseModel):


This isn't quite the same. It causes v2 models to never be dumped to dicts, causing round-trips to error when using FastAPI with some other magical libraries that are quite popular.

It caused the regression described in #14575 (comment).

In this particular case:

Cadwyn deeply copies the model class ConnectionResponse internally

The response from the endpoint is no longer a dict, but an instance of the original class ConnectionResponse

The validation fails because pydantic doesn't validate an instance of the copied class, but an instance of the original ConnectionResponse (but Cadwyn replaced type adapter's type with the copied class!)

@tiangolo, was this intended to start dumping v1 models only, without v2 models, in _prepare_response_content since this change?

Patch in #14582.

The 0.126.0 dropped Pydantic v1 but also likely introduced a bug on how Pydantic models get serialized. The comment about it: fastapi/fastapi#14575 (comment) We limit fast-api to exclude that version, hoping that 0.126.1 will fix it. (cherry picked from commit bd5e036) Co-authored-by: Jarek Potiuk <jarek@potiuk.com>

* Sync with #14575 (Drop support for Pydantic v1) * Add a word and fix a typo Found while syncing.

potiuk · 2025-12-25T22:26:39Z

Fixed in zmievsa/cadwyn#315 in Cadwyn 5.6.2 ! ... Thanks everyone for quick turnaround.

Airflow main is now compatible with latest FastApi as of apache/airflow#59806

The 0.126.0 dropped Pydantic v1 but also likely introduced a bug on how Pydantic models get serialized. The comment about it: fastapi/fastapi#14575 (comment) We limit fast-api to exclude that version, hoping that 0.126.1 will fix it.

This MR contains the following updates: | Package | Type | Update | Change | OpenSSF | |---|---|---|---|---| | [celery](https://docs.celeryq.dev/) ([source](https://github.com/celery/celery), [changelog](https://docs.celeryq.dev/en/stable/changelog.html)) | dependencies | minor | `5.5.3` → `5.6.2` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/celery/celery/badge)](https://securityscorecards.dev/viewer/?uri=github.com/celery/celery) | | [celery-types](https://github.com/sbdchd/celery-types) | dependencies | minor | `^0.22.0` → `^0.24.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/sbdchd/celery-types/badge)](https://securityscorecards.dev/viewer/?uri=github.com/sbdchd/celery-types) | | [fastapi](https://github.com/fastapi/fastapi) ([changelog](https://fastapi.tiangolo.com/release-notes/)) | dependencies | minor | `^0.115.12` → `^0.128.0` | [![OpenSSF 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Source](https://github.com/celery/celery/compare/v5.6.1...v5.6.2) \===== :release-date: 2026-01-04 :release-by: Tomer Nosrati What's Changed ``` - Fix recursive WorkController instantiation in DjangoWorkerFixup + AttributeError when pool_cls is a string (#10045) - Bugfix: Revoked tasks now immediately update backend status to REVOKED (#9869) - Prepare for release: v5.6.2 (#10049) .. _version-5.6.1: 5.6.1 ===== :release-date: 2025-12-29 :release-by: Tomer Nosrati What's Changed ``` - Fix Redis Sentinel ACL authentication support ([#10013](https://github.com/celery/celery/issues/10013)) - Fix: Broker heartbeats not sent during graceful shutdown ([#9986](https://github.com/celery/celery/issues/9986)) - docs [#5410](https://github.com/celery/celery/issues/5410) -- Document confirm\_publish broker transport option ([#10016](https://github.com/celery/celery/issues/10016)) - close DB pools only in prefork mode ([#10020](https://github.com/celery/celery/issues/10020)) - Fix: Avoid unnecessary Django database connection creation during cleanup ([#10015](https://github.com/celery/celery/issues/10015)) - reliable prefork detection ([#10023](https://github.com/celery/celery/issues/10023)) - better coverage ([#10029](https://github.com/celery/celery/issues/10029)) - Docs: clarify `result_extended` vs periodic task metadata and show `headers["periodic_task_name"]` example ([#10030](https://github.com/celery/celery/issues/10030)) - Stop importing pytest\_subtests ([#10032](https://github.com/celery/celery/issues/10032)) - Only use exceptiongroup backport for Python < 3.11 ([#10033](https://github.com/celery/celery/issues/10033)) - Prepare for release: v5.6.1 ([#10037](https://github.com/celery/celery/issues/10037)) .. \_version-5.6.0: ### [`v5.6.1`](https://github.com/celery/celery/releases/tag/v5.6.1) [Compare Source](https://github.com/celery/celery/compare/v5.6.0...v5.6.1) #### What's Changed - Fix Redis Sentinel ACL authentication support by [@anthonykuzmich7](https://github.com/anthonykuzmich7) in [#10013](https://github.com/celery/celery/pull/10013) - Fix: Broker heartbeats not sent during graceful shutdown by [@weetster](https://github.com/weetster) in [#9986](https://github.com/celery/celery/pull/9986) - docs [#5410](https://github.com/celery/celery/issues/5410) -- Document confirm\_publish broker transport option by [@JaeHyuckSa](https://github.com/JaeHyuckSa) in [#10016](https://github.com/celery/celery/pull/10016) - close DB pools only in prefork mode by [@petrprikryl](https://github.com/petrprikryl) in [#10020](https://github.com/celery/celery/pull/10020) - Fix: Avoid unnecessary Django database connection creation during cleanup by [@snopoke](https://github.com/snopoke) in [#10015](https://github.com/celery/celery/pull/10015) - reliable prefork detection by [@petrprikryl](https://github.com/petrprikryl) in [#10023](https://github.com/celery/celery/pull/10023) - better coverage by [@petrprikryl](https://github.com/petrprikryl) in [#10029](https://github.com/celery/celery/pull/10029) - Docs: clarify `result_extended` vs periodic task metadata and show `headers["periodic_task_name"]` example by [@SpaceShaman](https://github.com/SpaceShaman) in [#10030](https://github.com/celery/celery/pull/10030) - Stop importing pytest\_subtests by [@cjwatson](https://github.com/cjwatson) in [#10032](https://github.com/celery/celery/pull/10032) - Only use exceptiongroup backport for Python < 3.11 by [@cjwatson](https://github.com/cjwatson) in [#10033](https://github.com/celery/celery/pull/10033) - Prepare for release: v5.6.1 by [@Nusnus](https://github.com/Nusnus) in [#10037](https://github.com/celery/celery/pull/10037) #### New Contributors - [@anthonykuzmich7](https://github.com/anthonykuzmich7) made their first contribution in [#10013](https://github.com/celery/celery/pull/10013) - [@weetster](https://github.com/weetster) made their first contribution in [#9986](https://github.com/celery/celery/pull/9986) - [@JaeHyuckSa](https://github.com/JaeHyuckSa) made their first contribution in [#10016](https://github.com/celery/celery/pull/10016) - [@snopoke](https://github.com/snopoke) made their first contribution in [#10015](https://github.com/celery/celery/pull/10015) - [@SpaceShaman](https://github.com/SpaceShaman) made their first contribution in [#10030](https://github.com/celery/celery/pull/10030) **Full Changelog**: <https://github.com/celery/celery/compare/v5.6.0...v5.6.1> ### [`v5.6.0`](https://github.com/celery/celery/blob/HEAD/Changelog.rst#560) [Compare Source](https://github.com/celery/celery/compare/v5.5.3...v5.6.0) \===== :release-date: 2025-11-30 :release-by: Tomer Nosrati Celery v5.6.0 is now available. Key Highlights ``` See :ref:`whatsnew-5.6` for a complete overview or read the main highlights below. Python 3.9 Minimum Version -------------------------- Celery 5.6.0 drops support for Python 3.8 (EOL). The minimum required Python version is now 3.9. Users still on Python 3.8 must upgrade their Python version before upgrading to Celery 5.6.0. Additionally, this release includes initial support for Python 3.14. SQS: Reverted to ``pycurl`` from ``urllib3`` -------------------------------------------- The switch from ``pycurl`` to ``urllib3`` for the SQS transport (introduced in Celery 5.5.0 via Kombu) has been reverted due to critical issues affecting SQS users: - Processing throughput dropped from ~100 tasks/sec to ~3/sec in some environments - ``UnknownOperationException`` errors causing container crash loops - Silent message processing failures with no error logs Users of the SQS transport must ensure ``pycurl`` is installed. If you removed ``pycurl`` after upgrading to Celery 5.5.0, you will need to reinstall it. Contributed by `@auvipy <https://github.com/auvipy>`_ in `#9620 <https://github.com/celery/celery/pull/9620>`_. Security Fix: Broker Credential Leak Prevention ------------------------------------------------ Fixed a security issue where broker URLs containing passwords were being logged in plaintext by the delayed delivery mechanism. Broker credentials are now properly sanitized in all log output. Contributed by `@giancarloromeo <https://github.com/giancarloromeo>`_ in `#9997 <https://github.com/celery/celery/pull/9997>`_. Memory Leak Fixes ----------------- Two significant memory leaks have been fixed in this release: **Exception Handling Memory Leak**: Fixed a critical memory leak in task exception handling that was particularly severe on Python 3.11+ due to enhanced traceback data. The fix properly breaks reference cycles in tracebacks to allow garbage collection. Contributed by `@jaiganeshs21 <https://github.com/jaiganeshs21>`_ in `#9799 <https://github.com/celery/celery/pull/9799>`_. **Pending Result Memory Leak**: Fixed a memory leak where ``AsyncResult`` subscriptions were not being cleaned up when results were forgotten. Contributed by `@tsoos99dev <https://github.com/tsoos99dev>`_ in `#9806 <https://github.com/celery/celery/pull/9806>`_. ETA Task Memory Limit --------------------- New configuration option :setting:`worker_eta_task_limit` to prevent out-of-memory crashes when workers fetch large numbers of ETA or countdown tasks. Previously, workers could exhaust available memory when the broker contained many scheduled tasks. Example usage: .. code-block:: python app.conf.worker_eta_task_limit = 1000 Contributed by `@sashu2310 <https://github.com/sashu2310>`_ in `#9853 <https://github.com/celery/celery/pull/9853>`_. Queue Type Selection for Auto-created Queues -------------------------------------------- New configuration options allow specifying the queue type and exchange type when Celery auto-creates missing queues. This is particularly useful for RabbitMQ users who want to use quorum queues with auto-created queues. Configuration options: - :setting:`task_create_missing_queue_type`: Sets the queue type for auto-created queues (e.g., ``quorum``, ``classic``) - :setting:`task_create_missing_queue_exchange_type`: Sets the exchange type for auto-created queues Example usage: .. code-block:: python app.conf.task_create_missing_queue_type = 'quorum' Contributed by `@ghirailghiro <https://github.com/ghirailghiro>`_ in `#9815 <https://github.com/celery/celery/pull/9815>`_. What's Changed ``` - Prepare for release: v5.6.0 ([#10010](https://github.com/celery/celery/issues/10010)) .. \_version-5.6.0rc2: </details> <details> <summary>fastapi/fastapi (fastapi)</summary> ### [`v0.128.0`](https://github.com/fastapi/fastapi/releases/tag/0.128.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.127.1...0.128.0) ##### Breaking Changes - ➖ Drop support for `pydantic.v1`. MR [#14609](https://github.com/fastapi/fastapi/pull/14609) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ✅ Run performance tests only on Pydantic v2. MR [#14608](https://github.com/fastapi/fastapi/pull/14608) by [@tiangolo](https://github.com/tiangolo). ### [`v0.127.1`](https://github.com/fastapi/fastapi/releases/tag/0.127.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.127.0...0.127.1) ##### Refactors - 🔊 Add a custom `FastAPIDeprecationWarning`. MR [#14605](https://github.com/fastapi/fastapi/pull/14605) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add documentary to website. MR [#14600](https://github.com/fastapi/fastapi/pull/14600) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Update translations for de (update-outdated). MR [#14602](https://github.com/fastapi/fastapi/pull/14602) by [@nilslindemann](https://github.com/nilslindemann). - 🌐 Update translations for de (update-outdated). MR [#14581](https://github.com/fastapi/fastapi/pull/14581) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - 🔧 Update pre-commit to use local Ruff instead of hook. MR [#14604](https://github.com/fastapi/fastapi/pull/14604) by [@tiangolo](https://github.com/tiangolo). - ✅ Add missing tests for code examples. MR [#14569](https://github.com/fastapi/fastapi/pull/14569) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Remove `lint` job from `test` CI workflow. MR [#14593](https://github.com/fastapi/fastapi/pull/14593) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Update secrets check. MR [#14592](https://github.com/fastapi/fastapi/pull/14592) by [@tiangolo](https://github.com/tiangolo). - 👷 Run CodSpeed tests in parallel to other tests to speed up CI. MR [#14586](https://github.com/fastapi/fastapi/pull/14586) by [@tiangolo](https://github.com/tiangolo). - 🔨 Update scripts and pre-commit to autofix files. MR [#14585](https://github.com/fastapi/fastapi/pull/14585) by [@tiangolo](https://github.com/tiangolo). ### [`v0.127.0`](https://github.com/fastapi/fastapi/releases/tag/0.127.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.126.0...0.127.0) ##### Breaking Changes - 🔊 Add deprecation warnings when using `pydantic.v1`. MR [#14583](https://github.com/fastapi/fastapi/pull/14583) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🔧 Add LLM prompt file for Korean, generated from the existing translations. MR [#14546](https://github.com/fastapi/fastapi/pull/14546) by [@tiangolo](https://github.com/tiangolo). - 🔧 Add LLM prompt file for Japanese, generated from the existing translations. MR [#14545](https://github.com/fastapi/fastapi/pull/14545) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆️ Upgrade OpenAI model for translations to gpt-5.2. MR [#14579](https://github.com/fastapi/fastapi/pull/14579) by [@tiangolo](https://github.com/tiangolo). ### [`v0.126.0`](https://github.com/fastapi/fastapi/releases/tag/0.126.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.125.0...0.126.0) ##### Upgrades - ➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1`. MR [#14575](https://github.com/fastapi/fastapi/pull/14575) by [@tiangolo](https://github.com/tiangolo). - The minimum version of Pydantic installed is now `pydantic >=2.7.0`. - The `standard` dependencies now include `pydantic-settings >=2.0.0` and `pydantic-extra-types >=2.0.0`. ##### Docs - 📝 Fix duplicated variable in `docs_src/python_types/tutorial005_py39.py`. MR [#14565](https://github.com/fastapi/fastapi/pull/14565) by [@paras-verma7454](https://github.com/paras-verma7454). ##### Translations - 🔧 Add LLM prompt file for Ukrainian, generated from the existing translations. MR [#14548](https://github.com/fastapi/fastapi/pull/14548) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔧 Tweak pre-commit to allow committing release-notes. MR [#14577](https://github.com/fastapi/fastapi/pull/14577) by [@tiangolo](https://github.com/tiangolo). - ⬆️ Use prek as a pre-commit alternative. MR [#14572](https://github.com/fastapi/fastapi/pull/14572) by [@tiangolo](https://github.com/tiangolo). - 👷 Add performance tests with CodSpeed. MR [#14558](https://github.com/fastapi/fastapi/pull/14558) by [@tiangolo](https://github.com/tiangolo). ### [`v0.125.0`](https://github.com/fastapi/fastapi/releases/tag/0.125.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.4...0.125.0) ##### Breaking Changes - 🔧 Drop support for Python 3.8. MR [#14563](https://github.com/fastapi/fastapi/pull/14563) by [@tiangolo](https://github.com/tiangolo). - This would actually not be a *breaking* change as no code would really break. Any Python 3.8 installer would just refuse to install the latest version of FastAPI and would only install 0.124.4. Only marking it as a "breaking change" to make it visible. ##### Refactors - ♻️ Upgrade internal syntax to Python 3.9+ 🎉. MR [#14564](https://github.com/fastapi/fastapi/pull/14564) by [@tiangolo](https://github.com/tiangolo). ##### Docs - ⚰️ Remove Python 3.8 from CI and remove Python 3.8 examples from source docs. MR [#14559](https://github.com/fastapi/fastapi/pull/14559) by [@YuriiMotov](https://github.com/YuriiMotov) and [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Update translations for pt (add-missing). MR [#14539](https://github.com/fastapi/fastapi/pull/14539) by [@tiangolo](https://github.com/tiangolo). - 🔧 Add LLM prompt file for French, generated from the existing French docs. MR [#14544](https://github.com/fastapi/fastapi/pull/14544) by [@tiangolo](https://github.com/tiangolo). - 🌐 Sync Portuguese docs (pages found with script). MR [#14554](https://github.com/fastapi/fastapi/pull/14554) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync Spanish docs (outdated pages found with script). MR [#14553](https://github.com/fastapi/fastapi/pull/14553) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14519](https://github.com/fastapi/fastapi/pull/14519) by [@nilslindemann](https://github.com/nilslindemann). - 🔥 Remove inactive/scarce translations to Vietnamese. MR [#14543](https://github.com/fastapi/fastapi/pull/14543) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove inactive/scarce translations to Persian. MR [#14542](https://github.com/fastapi/fastapi/pull/14542) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove translation to emoji to simplify the new setup with LLM autotranslations. MR [#14541](https://github.com/fastapi/fastapi/pull/14541) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for pt (update-outdated). MR [#14537](https://github.com/fastapi/fastapi/pull/14537) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for es (update-outdated). MR [#14532](https://github.com/fastapi/fastapi/pull/14532) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for es (add-missing). MR [#14533](https://github.com/fastapi/fastapi/pull/14533) by [@tiangolo](https://github.com/tiangolo). - 🌐 Remove translations for removed docs. MR [#14516](https://github.com/fastapi/fastapi/pull/14516) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump `markdown-include-variants` from 0.0.7 to 0.0.8. MR [#14556](https://github.com/fastapi/fastapi/pull/14556) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Temporarily disable translations still in progress, being migrated to the new LLM setup. MR [#14555](https://github.com/fastapi/fastapi/pull/14555) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Update test workflow config, remove commented code. MR [#14540](https://github.com/fastapi/fastapi/pull/14540) by [@tiangolo](https://github.com/tiangolo). - 👷 Configure coverage, error on main tests, don't wait for Smokeshow. MR [#14536](https://github.com/fastapi/fastapi/pull/14536) by [@tiangolo](https://github.com/tiangolo). - 👷 Run Smokeshow always, even on test failures. MR [#14538](https://github.com/fastapi/fastapi/pull/14538) by [@tiangolo](https://github.com/tiangolo). - 👷 Make Pydantic versions customizable in CI. MR [#14535](https://github.com/fastapi/fastapi/pull/14535) by [@tiangolo](https://github.com/tiangolo). - 👷 Fix checkout GitHub Action fetch-depth for LLM translations, enable cron monthly. MR [#14531](https://github.com/fastapi/fastapi/pull/14531) by [@tiangolo](https://github.com/tiangolo). - 👷 Fix Typer command for CI LLM translations. MR [#14530](https://github.com/fastapi/fastapi/pull/14530) by [@tiangolo](https://github.com/tiangolo). - 👷 Update LLM translation CI, add language matrix and extra commands, prepare for scheduled run. MR [#14529](https://github.com/fastapi/fastapi/pull/14529) by [@tiangolo](https://github.com/tiangolo). - 👷 Update github-actions user for GitHub Actions workflows. MR [#14528](https://github.com/fastapi/fastapi/pull/14528) by [@tiangolo](https://github.com/tiangolo). - ➕ Add requirements for translations. MR [#14515](https://github.com/fastapi/fastapi/pull/14515) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.4`](https://github.com/fastapi/fastapi/releases/tag/0.124.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.3...0.124.4) ##### Fixes - 🐛 Fix parameter aliases. MR [#14371](https://github.com/fastapi/fastapi/pull/14371) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.124.3`](https://github.com/fastapi/fastapi/releases/tag/0.124.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.2...0.124.3) ##### Fixes - 🐛 Fix support for tagged union with discriminator inside of `Annotated` with `Body()`. MR [#14512](https://github.com/fastapi/fastapi/pull/14512) by [@tiangolo](https://github.com/tiangolo). ##### Refactors - ✅ Add set of tests for request parameters and alias. MR [#14358](https://github.com/fastapi/fastapi/pull/14358) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Docs - 📝 Tweak links format. MR [#14505](https://github.com/fastapi/fastapi/pull/14505) by [@tiangolo](https://github.com/tiangolo). - 📝 Update docs about re-raising validation errors, do not include string as is to not leak information. MR [#14487](https://github.com/fastapi/fastapi/pull/14487) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove external links section. MR [#14486](https://github.com/fastapi/fastapi/pull/14486) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Sync Russian docs. MR [#14509](https://github.com/fastapi/fastapi/pull/14509) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14488](https://github.com/fastapi/fastapi/pull/14488) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - 👷 Tweak coverage to not pass Smokeshow max file size limit. MR [#14507](https://github.com/fastapi/fastapi/pull/14507) by [@tiangolo](https://github.com/tiangolo). - ✅ Expand test matrix to include Windows and MacOS. MR [#14171](https://github.com/fastapi/fastapi/pull/14171) by [@svlandeg](https://github.com/svlandeg). ### [`v0.124.2`](https://github.com/fastapi/fastapi/releases/tag/0.124.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.1...0.124.2) ##### Fixes - 🐛 Fix support for `if TYPE_CHECKING`, non-evaluated stringified annotations. MR [#14485](https://github.com/fastapi/fastapi/pull/14485) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.1`](https://github.com/fastapi/fastapi/releases/tag/0.124.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.0...0.124.1) ##### Fixes - 🐛 Fix handling arbitrary types when using `arbitrary_types_allowed=True`. MR [#14482](https://github.com/fastapi/fastapi/pull/14482) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add variants for code examples in "Advanced User Guide". MR [#14413](https://github.com/fastapi/fastapi/pull/14413) by [@YuriiMotov](https://github.com/YuriiMotov). - 📝 Update tech stack in project generation docs. MR [#14472](https://github.com/fastapi/fastapi/pull/14472) by [@alejsdev](https://github.com/alejsdev). ##### Internal - ✅ Add test for Pydantic v2, dataclasses, UUID, and `__annotations__`. MR [#14477](https://github.com/fastapi/fastapi/pull/14477) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.0`](https://github.com/fastapi/fastapi/releases/tag/0.124.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.10...0.124.0) ##### Features - 🚸 Improve tracebacks by adding endpoint metadata. MR [#14306](https://github.com/fastapi/fastapi/pull/14306) by [@savannahostrowski](https://github.com/savannahostrowski). ##### Internal - ✏️ Fix typo in `scripts/mkdocs_hooks.py`. MR [#14457](https://github.com/fastapi/fastapi/pull/14457) by [@yujiteshima](https://github.com/yujiteshima). ### [`v0.123.10`](https://github.com/fastapi/fastapi/releases/tag/0.123.10) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.9...0.123.10) ##### Fixes - 🐛 Fix using class (not instance) dependency that has `__call__` method. MR [#14458](https://github.com/fastapi/fastapi/pull/14458) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix `separate_input_output_schemas=False` with `computed_field`. MR [#14453](https://github.com/fastapi/fastapi/pull/14453) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.9`](https://github.com/fastapi/fastapi/releases/tag/0.123.9) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.8...0.123.9) ##### Fixes - 🐛 Fix OAuth2 scopes in OpenAPI in extra corner cases, parent dependency with scopes, sub-dependency security scheme without scopes. MR [#14459](https://github.com/fastapi/fastapi/pull/14459) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.8`](https://github.com/fastapi/fastapi/releases/tag/0.123.8) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.7...0.123.8) ##### Fixes - 🐛 Fix OpenAPI security scheme OAuth2 scopes declaration, deduplicate security schemes with different scopes. MR [#14455](https://github.com/fastapi/fastapi/pull/14455) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.7`](https://github.com/fastapi/fastapi/releases/tag/0.123.7) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.6...0.123.7) ##### Fixes - 🐛 Fix evaluating stringified annotations in Python 3.10. MR [#11355](https://github.com/fastapi/fastapi/pull/11355) by [@chaen](https://github.com/chaen). ### [`v0.123.6`](https://github.com/fastapi/fastapi/releases/tag/0.123.6) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.5...0.123.6) ##### Fixes - 🐛 Fix support for functools wraps and partial combined, for async and regular functions and classes in path operations and dependencies. MR [#14448](https://github.com/fastapi/fastapi/pull/14448) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.5`](https://github.com/fastapi/fastapi/releases/tag/0.123.5) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.4...0.123.5) ##### Features - ✨ Allow using dependables with `functools.partial()`. MR [#9753](https://github.com/fastapi/fastapi/pull/9753) by [@lieryan](https://github.com/lieryan). - ✨ Add support for wrapped functions (e.g. `@functools.wraps()`) used with forward references. MR [#5077](https://github.com/fastapi/fastapi/pull/5077) by [@lucaswiman](https://github.com/lucaswiman). - ✨ Handle wrapped dependencies. MR [#9555](https://github.com/fastapi/fastapi/pull/9555) by [@phy1729](https://github.com/phy1729). ##### Fixes - 🐛 Fix optional sequence handling with new union syntax from Python 3.10. MR [#14430](https://github.com/fastapi/fastapi/pull/14430) by [@Viicos](https://github.com/Viicos). ##### Refactors - 🔥 Remove dangling extra condiitonal no longer needed. MR [#14435](https://github.com/fastapi/fastapi/pull/14435) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals, update `is_coroutine` check to reuse internal supported variants (unwrap, check class). MR [#14434](https://github.com/fastapi/fastapi/pull/14434) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Sync German docs. MR [#14367](https://github.com/fastapi/fastapi/pull/14367) by [@nilslindemann](https://github.com/nilslindemann). ### [`v0.123.4`](https://github.com/fastapi/fastapi/releases/tag/0.123.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.3...0.123.4) ##### Fixes - 🐛 Fix OpenAPI schema support for computed fields when using `separate_input_output_schemas=False`. MR [#13207](https://github.com/fastapi/fastapi/pull/13207) by [@vgrafe](https://github.com/vgrafe). ##### Docs - 📝 Fix docstring of `servers` parameter. MR [#14405](https://github.com/fastapi/fastapi/pull/14405) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.3`](https://github.com/fastapi/fastapi/releases/tag/0.123.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.2...0.123.3) ##### Fixes - 🐛 Fix Query\Header\Cookie parameter model alias. MR [#14360](https://github.com/fastapi/fastapi/pull/14360) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix optional sequence handling in `serialize sequence value` with Pydantic V2. MR [#14297](https://github.com/fastapi/fastapi/pull/14297) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.2`](https://github.com/fastapi/fastapi/releases/tag/0.123.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.1...0.123.2) ##### Fixes - 🐛 Fix unformatted `{type_}` in FastAPIError. MR [#14416](https://github.com/fastapi/fastapi/pull/14416) by [@Just-Helpful](https://github.com/Just-Helpful). - 🐛 Fix parsing extra non-body parameter list. MR [#14356](https://github.com/fastapi/fastapi/pull/14356) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix parsing extra `Form` parameter list. MR [#14303](https://github.com/fastapi/fastapi/pull/14303) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix support for form values with empty strings interpreted as missing (`None` if that's the default), for compatibility with HTML forms. MR [#13537](https://github.com/fastapi/fastapi/pull/13537) by [@MarinPostma](https://github.com/MarinPostma). ##### Docs - 📝 Add tip on how to install `pip` in case of `No module named pip` error in `virtual-environments.md`. MR [#14211](https://github.com/fastapi/fastapi/pull/14211) by [@zadevhub](https://github.com/zadevhub). - 📝 Update Primary Key notes for the SQL databases tutorial to avoid confusion. MR [#14120](https://github.com/fastapi/fastapi/pull/14120) by [@FlaviusRaducu](https://github.com/FlaviusRaducu). - 📝 Clarify estimation note in documentation. MR [#14070](https://github.com/fastapi/fastapi/pull/14070) by [@SaisakthiM](https://github.com/SaisakthiM). ### [`v0.123.1`](https://github.com/fastapi/fastapi/releases/tag/0.123.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.0...0.123.1) ##### Fixes - 🐛 Avoid accessing non-existing "$ref" key for Pydantic v2 compat remapping. MR [#14361](https://github.com/fastapi/fastapi/pull/14361) by [@svlandeg](https://github.com/svlandeg). - 🐛 Fix `TypeError` when encoding a decimal with a `NaN` or `Infinity` value. MR [#12935](https://github.com/fastapi/fastapi/pull/12935) by [@kentwelcome](https://github.com/kentwelcome). ##### Internal - 🐛 Fix Windows UnicodeEncodeError in CLI test. MR [#14295](https://github.com/fastapi/fastapi/pull/14295) by [@hemanth-thirthahalli](https://github.com/hemanth-thirthahalli). - 🔧 Update sponsors: add Greptile. MR [#14429](https://github.com/fastapi/fastapi/pull/14429) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI GitHub topic repositories. MR [#14426](https://github.com/fastapi/fastapi/pull/14426) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump markdown-include-variants from 0.0.6 to 0.0.7. MR [#14423](https://github.com/fastapi/fastapi/pull/14423) by [@YuriiMotov](https://github.com/YuriiMotov). - 👥 Update FastAPI People - Sponsors. MR [#14422](https://github.com/fastapi/fastapi/pull/14422) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Contributors and Translators. MR [#14420](https://github.com/fastapi/fastapi/pull/14420) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.0`](https://github.com/fastapi/fastapi/releases/tag/0.123.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.122.1...0.123.0) ##### Fixes - 🐛 Cache dependencies that don't use scopes and don't have sub-dependencies with scopes. MR [#14419](https://github.com/fastapi/fastapi/pull/14419) by [@tiangolo](https://github.com/tiangolo). ### [`v0.122.1`](https://github.com/fastapi/fastapi/releases/tag/0.122.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.122.0...0.122.1) ##### Fixes - 🐛 Fix hierarchical security scope propagation. MR [#5624](https://github.com/fastapi/fastapi/pull/5624) by [@kristjanvalur](https://github.com/kristjanvalur). ##### Docs - 💅 Update CSS to explicitly use emoji font. MR [#14415](https://github.com/fastapi/fastapi/pull/14415) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump markdown-include-variants from 0.0.5 to 0.0.6. MR [#14418](https://github.com/fastapi/fastapi/pull/14418) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.122.0`](https://github.com/fastapi/fastapi/releases/tag/0.122.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.3...0.122.0) ##### Fixes - 🐛 Use `401` status code in security classes when credentials are missing. MR [#13786](https://github.com/fastapi/fastapi/pull/13786) by [@YuriiMotov](https://github.com/YuriiMotov). - If your code depended on these classes raising the old (less correct) `403` status code, check the new docs about how to override the classes, to use the same old behavior: [Use Old 403 Authentication Error Status Codes](https://fastapi.tiangolo.com/how-to/authentication-error-status-code/). ##### Internal - 🔧 Configure labeler to exclude files that start from underscore for `lang-all` label. MR [#14213](https://github.com/fastapi/fastapi/pull/14213) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Add pre-commit config with local script for permalinks. MR [#14398](https://github.com/fastapi/fastapi/pull/14398) by [@tiangolo](https://github.com/tiangolo). - 💄 Use font Fira Code to fix display of Rich panels in docs in Windows. MR [#14387](https://github.com/fastapi/fastapi/pull/14387) by [@tiangolo](https://github.com/tiangolo). - 👷 Add custom pre-commit CI. MR [#14397](https://github.com/fastapi/fastapi/pull/14397) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump actions/checkout from 5 to 6. MR [#14381](https://github.com/fastapi/fastapi/pull/14381) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - 👷 Upgrade `latest-changes` GitHub Action and pin `actions/checkout@v5`. MR [#14403](https://github.com/fastapi/fastapi/pull/14403) by [@svlandeg](https://github.com/svlandeg). - 🛠️ Add `add-permalinks` and `add-permalinks-page` to `scripts/docs.py`. MR [#14033](https://github.com/fastapi/fastapi/pull/14033) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Upgrade Material for MkDocs and remove insiders. MR [#14375](https://github.com/fastapi/fastapi/pull/14375) by [@tiangolo](https://github.com/tiangolo). ### [`v0.121.3`](https://github.com/fastapi/fastapi/releases/tag/0.121.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.2...0.121.3) ##### 0.121.3 ##### Refactors - ♻️ Make the result of `Depends()` and `Security()` hashable, as a workaround for other tools interacting with these internal parts. MR [#14372](https://github.com/fastapi/fastapi/pull/14372) by [@tiangolo](https://github.com/tiangolo). ##### Upgrades - ⬆️ Bump Starlette to <`0.51.0`. MR [#14282](https://github.com/fastapi/fastapi/pull/14282) by [@musicinmybrain](https://github.com/musicinmybrain). ##### Docs - 📝 Add missing hash part. MR [#14369](https://github.com/fastapi/fastapi/pull/14369) by [@nilslindemann](https://github.com/nilslindemann). - 📝 Fix typos in code comments. MR [#14364](https://github.com/fastapi/fastapi/pull/14364) by [@Edge-Seven](https://github.com/Edge-Seven). - 📝 Add docs for using FastAPI Cloud. MR [#14359](https://github.com/fastapi/fastapi/pull/14359) by [@tiangolo](https://github.com/tiangolo). ### [`v0.121.2`](https://github.com/fastapi/fastapi/releases/tag/0.121.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.1...0.121.2) ##### Fixes - 🐛 Fix handling of JSON Schema attributes named "$ref". MR [#14349](https://github.com/fastapi/fastapi/pull/14349) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add EuroPython talk & podcast episode with Sebastián Ramírez. MR [#14260](https://github.com/fastapi/fastapi/pull/14260) by [@clytaemnestra](https://github.com/clytaemnestra). - ✏️ Fix links and add missing permalink in docs. MR [#14217](https://github.com/fastapi/fastapi/pull/14217) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Translations - 🌐 Update Portuguese translations with LLM prompt. MR [#14228](https://github.com/fastapi/fastapi/pull/14228) by [@ceb10n](https://github.com/ceb10n). - 🔨 Add Portuguese translations LLM prompt. MR [#14208](https://github.com/fastapi/fastapi/pull/14208) by [@ceb10n](https://github.com/ceb10n). - 🌐 Sync Russian docs. MR [#14331](https://github.com/fastapi/fastapi/pull/14331) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14317](https://github.com/fastapi/fastapi/pull/14317) by [@nilslindemann](https://github.com/nilslindemann). ### [`v0.121.1`](https://github.com/fastapi/fastapi/releases/tag/0.121.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.0...0.121.1) ##### Fixes - 🐛 Fix `Depends(func, scope='function')` for top level (parameterless) dependencies. MR [#14301](https://github.com/fastapi/fastapi/pull/14301) by [@luzzodev](https://github.com/luzzodev). ##### Docs - 📝 Upate docs for advanced dependencies with `yield`, noting the changes in 0.121.0, adding `scope`. MR [#14287](https://github.com/fastapi/fastapi/pull/14287) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump ruff from 0.13.2 to 0.14.3. MR [#14276](https://github.com/fastapi/fastapi/pull/14276) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14289](https://github.com/fastapi/fastapi/pull/14289) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). ### [`v0.121.0`](https://github.com/fastapi/fastapi/releases/tag/0.121.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.4...0.121.0) ##### Features - ✨ Add support for dependencies with scopes, support `scope="request"` for dependencies with `yield` that exit before the response is sent. MR [#14262](https://github.com/fastapi/fastapi/pull/14262) by [@tiangolo](https://github.com/tiangolo). - New docs: [Dependencies with `yield` - Early exit and `scope`](https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/#early-exit-and-scope). ##### Internal - 👥 Update FastAPI People - Contributors and Translators. MR [#14273](https://github.com/fastapi/fastapi/pull/14273) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Sponsors. MR [#14274](https://github.com/fastapi/fastapi/pull/14274) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI GitHub topic repositories. MR [#14280](https://github.com/fastapi/fastapi/pull/14280) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump mkdocs-macros-plugin from 1.4.0 to 1.4.1. MR [#14277](https://github.com/fastapi/fastapi/pull/14277) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump mkdocstrings\[python] from 0.26.1 to 0.30.1. MR [#14279](https://github.com/fastapi/fastapi/pull/14279) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.120.4`](https://github.com/fastapi/fastapi/releases/tag/0.120.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.3...0.120.4) ##### Fixes - 🐛 Fix security schemes in OpenAPI when added at the top level app. MR [#14266](https://github.com/fastapi/fastapi/pull/14266) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.3`](https://github.com/fastapi/fastapi/releases/tag/0.120.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.2...0.120.3) ##### Refactors - ♻️ Reduce internal cyclic recursion in dependencies, from 2 functions calling each other to 1 calling itself. MR [#14256](https://github.com/fastapi/fastapi/pull/14256) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals of dependencies, simplify code and remove `get_param_sub_dependant`. MR [#14255](https://github.com/fastapi/fastapi/pull/14255) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals of dependencies, simplify using dataclasses. MR [#14254](https://github.com/fastapi/fastapi/pull/14254) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Update note for untranslated pages. MR [#14257](https://github.com/fastapi/fastapi/pull/14257) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.2`](https://github.com/fastapi/fastapi/releases/tag/0.120.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.1...0.120.2) ##### Fixes - 🐛 Fix separation of schemas with nested models introduced in 0.119.0. MR [#14246](https://github.com/fastapi/fastapi/pull/14246) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔧 Add sponsor: SerpApi. MR [#14248](https://github.com/fastapi/fastapi/pull/14248) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump actions/download-artifact from 5 to 6. MR [#14236](https://github.com/fastapi/fastapi/pull/14236) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14237](https://github.com/fastapi/fastapi/pull/14237) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ⬆ Bump actions/upload-artifact from 4 to 5. MR [#14235](https://github.com/fastapi/fastapi/pull/14235) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.120.1`](https://github.com/fastapi/fastapi/releases/tag/0.120.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.0...0.120.1) ##### Upgrades - ⬆️ Bump Starlette to <`0.50.0`. MR [#14234](https://github.com/fastapi/fastapi/pull/14234) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Internal - 🔧 Add `license` and `license-files` to `pyproject.toml`, remove `License` from `classifiers`. MR [#14230](https://github.com/fastapi/fastapi/pull/14230) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.0`](https://github.com/fastapi/fastapi/releases/tag/0.120.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.119.1...0.120.0) There are no major nor breaking changes in this release. ☕️ The internal reference documentation now uses `annotated_doc.Doc` instead of `typing_extensions.Doc`, this adds a new (very small) dependency on [`annotated-doc`](https://github.com/fastapi/annotated-doc), a package made just to provide that `Doc` documentation utility class. I would expect `typing_extensions.Doc` to be deprecated and then removed at some point from `typing_extensions`, for that reason there's the new `annotated-doc` micro-package. If you are curious about this, you can read more in the repo for [`annotated-doc`](https://github.com/fastapi/annotated-doc). This new version `0.120.0` only contains that transition to the new home package for that utility class `Doc`. ##### Translations - 🌐 Sync German docs. MR [#14188](https://github.com/fastapi/fastapi/pull/14188) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ➕ Migrate internal reference documentation from `typing_extensions.Doc` to `annotated_doc.Doc`. MR [#14222](https://github.com/fastapi/fastapi/pull/14222) by [@tiangolo](https://github.com/tiangolo). - 🛠️ Update German LLM prompt and test file. MR [#14189](https://github.com/fastapi/fastapi/pull/14189) by [@nilslindemann](https://github.com/nilslindemann). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14181](https://github.com/fastapi/fastapi/pull/14181) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). ### [`v0.119.1`](https://github.com/fastapi/fastapi/releases/tag/0.119.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.119.0...0.119.1) ##### Fixes - 🐛 Fix internal Pydantic v1 compatibility (warnings) for Python 3.14 and Pydantic 2.12.1. MR [#14186](https://github.com/fastapi/fastapi/pull/14186) by [@svlandeg](https://github.com/svlandeg). ##### Docs - 📝 Replace `starlette.io` by `starlette.dev` and `uvicorn.org` by `uvicorn.dev`. MR [#14176](https://github.com/fastapi/fastapi/pull/14176) by [@Kludex](https://github.com/Kludex). ##### Internal - 🔧 Add sponsor Requestly. MR [#14205](https://github.com/fastapi/fastapi/pull/14205) by [@tiangolo](https://github.com/tiangolo). - 🔧 Configure reminder for `waiting` label in `issue-manager`. MR [#14156](https://github.com/fastapi/fastapi/pull/14156) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.119.0`](https://github.com/fastapi/fastapi/releases/tag/0.119.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.3...0.119.0) FastAPI now (temporarily) supports both Pydantic v2 models and `pydantic.v1` models at the same time in the same app, to make it easier for any FastAPI apps still using Pydantic v1 to gradually but quickly **migrate to Pydantic v2**. ```Python from fastapi import FastAPI from pydantic import BaseModel as BaseModelV2 from pydantic.v1 import BaseModel class Item(BaseModel): name: str description: str | None = None class ItemV2(BaseModelV2): title: str summary: str | None = None app = FastAPI() @app.post("/items/", response_model=ItemV2) def create_item(item: Item): return {"title": item.name, "summary": item.description} ``` Adding this feature was a big effort with the main objective of making it easier for the few applications still stuck in Pydantic v1 to migrate to Pydantic v2. And with this, support for **Pydantic v1 is now deprecated** and will be **removed** from FastAPI in a future version soon. **Note**: have in mind that the Pydantic team already stopped supporting Pydantic v1 for recent versions of Python, starting with Python 3.14. You can read in the docs more about how to [Migrate from Pydantic v1 to Pydantic v2](https://fastapi.tiangolo.com/how-to/migrate-from-pydantic-v1-to-pydantic-v2/). ##### Features - ✨ Add support for `from pydantic.v1 import BaseModel`, mixed Pydantic v1 and v2 models in the same app. MR [#14168](https://github.com/fastapi/fastapi/pull/14168) by [@tiangolo](https://github.com/tiangolo). ### [`v0.118.3`](https://github.com/fastapi/fastapi/releases/tag/0.118.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.2...0.118.3) ##### Upgrades - ⬆️ Add support for Python 3.14. MR [#14165](https://github.com/fastapi/fastapi/pull/14165) by [@svlandeg](https://github.com/svlandeg). ### [`v0.118.2`](https://github.com/fastapi/fastapi/releases/tag/0.118.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.1...0.118.2) ##### Fixes - 🐛 Fix tagged discriminated union not recognized as body field. MR [#12942](https://github.com/fastapi/fastapi/pull/12942) by [@frankie567](https://github.com/frankie567). ##### Internal - ⬆ Bump astral-sh/setup-uv from 6 to 7. MR [#14167](https://github.com/fastapi/fastapi/pull/14167) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.118.1`](https://github.com/fastapi/fastapi/releases/tag/0.118.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.0...0.118.1) ##### Upgrades - 👽️ Ensure compatibility with Pydantic 2.12.0. MR [#14036](https://github.com/fastapi/fastapi/pull/14036) by [@cjwatson](https://github.com/cjwatson). ##### Docs - 📝 Add External Link: Getting started with logging in FastAPI. MR [#14152](https://github.com/fastapi/fastapi/pull/14152) by [@itssimon](https://github.com/itssimon). ##### Translations - 🔨 Add Russian translations LLM prompt. MR [#13936](https://github.com/fastapi/fastapi/pull/13936) by [@tiangolo](https://github.com/tiangolo). - 🌐 Sync German docs. MR [#14149](https://github.com/fastapi/fastapi/pull/14149) by [@nilslindemann](https://github.com/nilslindemann). - 🌐 Add Russian translations for missing pages (LLM-generated). MR [#14135](https://github.com/fastapi/fastapi/pull/14135) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Update Russian translations for existing pages (LLM-generated). MR [#14123](https://github.com/fastapi/fastapi/pull/14123) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Remove configuration files for inactive translations. MR [#14130](https://github.com/fastapi/fastapi/pull/14130) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔨 Move local coverage logic to its own script. MR [#14166](https://github.com/fastapi/fastapi/pull/14166) by [@tiangolo](https://github.com/tiangolo). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14161](https://github.com/fastapi/fastapi/pull/14161) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ⬆ Bump griffe-typingdoc from 0.2.8 to 0.2.9. MR [#14144](https://github.com/fastapi/fastapi/pull/14144) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump mkdocs-macros-plugin from 1.3.9 to 1.4.0. MR [#14145](https://github.com/fastapi/fastapi/pull/14145) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump markdown-include-variants from 0.0.4 to 0.0.5. MR [#14146](https://github.com/fastapi/fastapi/pull/14146) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14126](https://github.com/fastapi/fastapi/pull/14126) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - 👥 Update FastAPI GitHub topic repositories. MR [#14150](https://github.com/fastapi/fastapi/pull/14150) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Sponsors. MR [#14139](https://github.com/fastapi/fastapi/pull/14139) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Contributors and Translators. MR [#14138](https://github.com/fastapi/fastapi/pull/14138) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump ruff from 0.12.7 to 0.13.2. MR [#14147](https://github.com/fastapi/fastapi/pull/14147) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump sqlmodel from 0.0.24 to 0.0.25. MR [#14143](https://github.com/fastapi/fastapi/pull/14143) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump tiangolo/issue-manager from 0.5.1 to 0.6.0. MR [#14148](https://github.com/fastapi/fastapi/pull/14148) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - 👷 Update docs previews comment, single comment, add failure status. MR [#14129](https://github.com/fastapi/fastapi/pull/14129) by [@tiangolo](https://github.com/tiangolo). - 🔨 Modify `mkdocs_hooks.py` to add `title` to page's metadata (remove permalinks in social cards). MR [#14125](https://github.com/fastapi/fastapi/pull/14125) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.118.0`](https://github.com/fastapi/fastapi/releases/tag/0.118.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.117.1...0.118.0) ##### 0.118.0 ##### Fixes - 🐛 Fix support for `StreamingResponse`s with dependencies with `yield` or `UploadFile`s, close after the response is done. MR [#14099](https://github.com/fastapi/fastapi/pull/14099) by [@tiangolo](https://github.com/tiangolo). Before FastAPI 0.118.0, if you used a dependency with `yield`, it would run the exit code after the *path operation function* returned but right before sending the response. This change also meant that if you returned a `StreamingResponse`, the exit code of the dependency with `yield` would have been already run. For example, if you had a database session in a dependency with `yield`, the `StreamingResponse` would not be able to use that session while streaming data because the session would have already been closed in the exit code after `yield`. This behavior was reverted in 0.118.0, to make the exit code after `yield` be executed after the response is sent. You can read more about it in the docs for [Advanced Dependencies - Dependencies with `yield`, `HTTPException`, `except` and Background Tasks](https://fastapi.tiangolo.com/advanced/advanced-dependencies#dependencies-with-yield-httpexception-except-and-background-tasks). Including what you could do if you wanted to close a database session earlier, before returning the response to the client. ##### Docs - 📝 Update `tutorial/security/oauth2-jwt/` to use `pwdlib` with Argon2 instead of `passlib`. MR [#13917](https://github.com/fastapi/fastapi/pull/13917) by [@Neizvestnyj](https://github.com/Neizvestnyj). - ✏️ Fix typos in OAuth2 password request forms. MR [#14112](https://github.com/fastapi/fastapi/pull/14112) by [@alv2017](https://github.com/alv2017). - 📝 Update contributing guidelines for installing requirements. MR [#14095](https://github.com/fastapi/fastapi/pull/14095) by [@alejsdev](https://github.com/alejsdev). ##### Translations - 🌐 Sync German docs. MR [#14098](https://github.com/fastapi/fastapi/pull/14098) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14103](https://github.com/fastapi/fastapi/pull/14103) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ♻️ Refactor sponsor image handling. MR [#14102](https://github.com/fastapi/fastapi/pull/14102) by [@alejsdev](https://github.com/alejsdev). - 🐛 Fix sponsor display issue by hiding element on image error. MR [#14097](https://github.com/fastapi/fastapi/pull/14097) by [@alejsdev](https://github.com/alejsdev). - 🐛 Hide sponsor badge when sponsor image is not displayed. MR [#14096](https://github.com/fastapi/fastapi/pull/14096) by [@alejsdev](https://github.com/alejsdev). ### [`v0.117.1`](https://github.com/fastapi/fastapi/releases/tag/0.117.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.117.0...0.117.1) ##### Fixes - 🐛 Fix validation error when `File` is declared after `Form` parameter. MR [#11194](https://github.com/fastapi/fastapi/pull/11194) by [@thomasleveil](https://github.com/thomasleveil). ### [`v0.117.0`](https://github.com/fastapi/fastapi/releases/tag/0.117.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.116.2...0.117.0) ##### Features - ✨ Allow `None` as return type for bodiless responses. MR [#9425](https://github.com/fastapi/fastapi/pull/9425) by [@hofrob](https://github.com/hofrob). - ✨ Allow array values for OpenAPI schema `type` field. MR [#13639](https://github.com/fastapi/fastapi/pull/13639) by [@sammasak](https://github.com/sammasak). - ✨ Add OpenAPI `external_docs` parameter to `FastAPI`. MR [#13713](https://github.com/fastapi/fastapi/pull/13713) by [@cmtoro](https://github.com/cmtoro). ##### Fixes - ⚡️ Fix `default_factory` for response model field with Pydantic V1. MR [#9704](https://github.com/fastapi/fastapi/pull/9704) by [@vvanglro](https://github.com/vvanglro). - 🐛 Fix inconsistent processing of model docstring formfeed char with Pydantic V1. MR [#6039](https://github.com/fastapi/fastapi/pull/6039) by [@MaxwellPayne](https://github.com/MaxwellPayne). - 🐛 Fix `jsonable_encoder` alters `json_encoders` of Pydantic v1 objects. MR [#4972](https://github.com/fastapi/fastapi/pull/4972) by [@aboubacs](https://github.com/aboubacs). - 🐛 Reenable `allow_arbitrary_types` when only 1 argument is used on the API endpoint. MR [#13694](https://github.com/fastapi/fastapi/pull/13694) by [@rmawatson](https://github.com/rmawatson). - 🐛 Fix `inspect.getcoroutinefunction()` can break testing with `unittest.mock.patch()`. MR [#14022](https://github.com/fastapi/fastapi/pull/14022) by [@secrett2633](https://github.com/secrett2633). ##### Refactors - ♻️ Create `dependency-cache` dict in `solve_dependencies` only if `None` (don't re-create if empty). MR [#13689](https://github.com/fastapi/fastapi/pull/13689) by [@bokshitsky](https://github.com/bokshitsky). - ✅ Enable test case for duplicated headers in `test_tutorial/test_header_params/test_tutorial003.py`. MR [#13864](https://github.com/fastapi/fastapi/pull/13864) by [@Amogha-ark](https://github.com/Amogha-ark). - 📌 Pin `httpx` to `>=0.23.0,<1.0.0`. MR [#14086](https://github.com/fastapi/fastapi/pull/14086) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Docs - 📝 Add note about Cookies and JavaScript on `tutorial/cookie-params.md`. MR [#13510](https://github.com/fastapi/fastapi/pull/13510) by [@Kludex](https://github.com/Kludex). - 📝 Remove outdated formatting from `path-params-numeric-validations.md` for languages `en`, `es` and `uk`.. MR [#14059](https://github.com/fastapi/fastapi/pull/14059) by [@svlandeg](https://github.com/svlandeg). - 📝 Fix and Improve English Documentation. MR [#14048](https://github.com/fastapi/fastapi/pull/14048) by [@nilslindemann](https://github.com/nilslindemann). ##### Translations - 📝 Update prompts and German translation. MR [#14015](https://github.com/fastapi/fastapi/pull/14015) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ✅ Simplify tests for response\_model. MR [#14062](https://github.com/fastapi/fastapi/pull/14062) by [@dynamicy](https://github.com/dynamicy). - 🚨 Install pydantic.mypy plugin. MR [#14081](https://github.com/fastapi/fastapi/pull/14081) by [@svlandeg](https://github.com/svlandeg). - ✅ Add LLM test file. MR [#14049](https://github.com/fastapi/fastapi/pull/14049) by [@nilslindemann](https://github.com/nilslindemann). - 🔨 Update translations script. MR [#13968](https://github.com/fastapi/fastapi/pull/13968) by [@YuriiMotov](https://github.com/YuriiMotov). - 🛠️ Update `docs.py generate-readme` command to remove permalinks from headers. MR [#14055](https://github.com/fastapi/fastapi/pull/14055) by [@YuriiMotov](https://github.com/YuriiMotov). - ⬆️ Update mypy to 1.14.1. MR [#12970](https://github.com/fastapi/fastapi/pull/12970) by [@tamird](https://github.com/tamird). ### [`v0.116.2`](https://github.com/fastapi/fastapi/releases/tag/0.116.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.116.1...0.116.2) ##### Upgrades - ⬆️ Upgrade Starlette supported version range to >=0.40.0,<0.49.0. MR [#14077](https://github.com/fastapi/fastapi/pull/14077) by [@musicinmybrain](https://github.com/musicinmybrain). ##### Docs - 📝 Add documentation for Behind a Proxy - Proxy Forwarded Headers, using `--forwarded-allow-ips="*"`. MR [#14028](https://github.com/fastapi/fastapi/pull/14028) by [@tiangolo](https://github.com/tiangolo). - 📝 Add deprecation info block about `dict()` in `docs/tutorial/body.md`. MR [#13906](https://github.com/fastapi/fastapi/pull/13906) by [@jomkv](https://github.com/jomkv). - 📝 Fix Twitter to be X (Twitter) everywhere in documentation. MR [#13809](https://gith…

fix(deps): update backend dependencies (minor) (minor) This MR contains the following updates: | Package | Type | Update | Change | OpenSSF | |---|---|---|---|---| | [celery](https://docs.celeryq.dev/) ([source](https://github.com/celery/celery), [changelog](https://docs.celeryq.dev/en/stable/changelog.html)) | dependencies | minor | `5.5.3` → `5.6.2` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/celery/celery/badge)](https://securityscorecards.dev/viewer/?uri=github.com/celery/celery) | | [celery-types](https://github.com/sbdchd/celery-types) | dependencies | minor | `^0.22.0` → `^0.24.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/sbdchd/celery-types/badge)](https://securityscorecards.dev/viewer/?uri=github.com/sbdchd/celery-types) | | [fastapi](https://github.com/fastapi/fastapi) ([changelog](https://fastapi.tiangolo.com/release-notes/)) | dependencies | minor | `^0.115.12` → `^0.128.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/fastapi/fastapi/badge)](https://securityscorecards.dev/viewer/?uri=github.com/fastapi/fastapi) | | [filelock](https://github.com/tox-dev/py-filelock) | dependencies | minor | `3.14.0` → `3.20.3` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/tox-dev/py-filelock/badge)](https://securityscorecards.dev/viewer/?uri=github.com/tox-dev/py-filelock) | | [luqum](https://github.com/jurismarches/luqum) | dependencies | minor | `^0.13.0` → `^0.14.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/jurismarches/luqum/badge)](https://securityscorecards.dev/viewer/?uri=github.com/jurismarches/luqum) | | [ollama](https://github.com/ollama/ollama-python) | dependencies | minor | `^0.5.1` → `^0.6.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/ollama/ollama-python/badge)](https://securityscorecards.dev/viewer/?uri=github.com/ollama/ollama-python) | | [pycryptodome](https://www.pycryptodome.org) ([source](https://github.com/Legrandin/pycryptodome), [changelog](https://www.pycryptodome.org/src/changelog)) | dependencies | minor | `3.20.0` → `3.23.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/Legrandin/pycryptodome/badge)](https://securityscorecards.dev/viewer/?uri=github.com/Legrandin/pycryptodome) | | [pydantic-mongo](https://github.com/jefersondaniel/pydantic-mongo) | dependencies | minor | `2.3.0` → `2.4.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/jefersondaniel/pydantic-mongo/badge)](https://securityscorecards.dev/viewer/?uri=github.com/jefersondaniel/pydantic-mongo) | | [pydantic-settings](https://github.com/pydantic/pydantic-settings) ([changelog](https://github.com/pydantic/pydantic-settings/releases)) | dependencies | minor | `2.2.1` → `2.12.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/pydantic/pydantic-settings/badge)](https://securityscorecards.dev/viewer/?uri=github.com/pydantic/pydantic-settings) | | [pymongo](https://github.com/mongodb/mongo-python-driver) | dependencies | minor | `4.15.5` → `4.16.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/mongodb/mongo-python-driver/badge)](https://securityscorecards.dev/viewer/?uri=github.com/mongodb/mongo-python-driver) | | [pytest-asyncio](https://github.com/pytest-dev/pytest-asyncio) ([changelog](https://pytest-asyncio.readthedocs.io/en/latest/reference/changelog.html)) | dependencies | minor | `^0.23.6` → `^0.26.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/pytest-dev/pytest-asyncio/badge)](https://securityscorecards.dev/viewer/?uri=github.com/pytest-dev/pytest-asyncio) | | [pytest-timeout](https://github.com/pytest-dev/pytest-timeout) | dependencies | minor | `2.3.1` → `2.4.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/pytest-dev/pytest-timeout/badge)](https://securityscorecards.dev/viewer/?uri=github.com/pytest-dev/pytest-timeout) | | [scikit-learn](https://github.com/scikit-learn/scikit-learn) ([changelog](https://scikit-learn.org/stable/whats_new)) | dependencies | minor | `1.7.0` → `1.8.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/scikit-learn/scikit-learn/badge)](https://securityscorecards.dev/viewer/?uri=github.com/scikit-learn/scikit-learn) | | [scikit-learn](https://github.com/scikit-learn/scikit-learn) ([changelog](https://scikit-learn.org/stable/whats_new)) | dependencies | minor | `1.6.1` → `1.8.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/scikit-learn/scikit-learn/badge)](https://securityscorecards.dev/viewer/?uri=github.com/scikit-learn/scikit-learn) | | [scipy](https://github.com/scipy/scipy) | dependencies | minor | `1.15.3` → `1.17.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/scipy/scipy/badge)](https://securityscorecards.dev/viewer/?uri=github.com/scipy/scipy) | | [uvicorn](https://github.com/Kludex/uvicorn) ([changelog](https://uvicorn.dev/release-notes)) | dependencies | minor | `^0.29.0` → `^0.40.0` | [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/Kludex/uvicorn/badge)](https://securityscorecards.dev/viewer/?uri=github.com/Kludex/uvicorn) | --- ### Release Notes <details> <summary>celery/celery (celery)</summary> ### [`v5.6.2`](https://github.com/celery/celery/blob/HEAD/Changelog.rst#562) [Compare Source](https://github.com/celery/celery/compare/v5.6.1...v5.6.2) \===== :release-date: 2026-01-04 :release-by: Tomer Nosrati What's Changed ``` - Fix recursive WorkController instantiation in DjangoWorkerFixup + AttributeError when pool_cls is a string (#10045) - Bugfix: Revoked tasks now immediately update backend status to REVOKED (#9869) - Prepare for release: v5.6.2 (#10049) .. _version-5.6.1: 5.6.1 ===== :release-date: 2025-12-29 :release-by: Tomer Nosrati What's Changed ``` - Fix Redis Sentinel ACL authentication support ([#10013](https://github.com/celery/celery/issues/10013)) - Fix: Broker heartbeats not sent during graceful shutdown ([#9986](https://github.com/celery/celery/issues/9986)) - docs [#5410](https://github.com/celery/celery/issues/5410) -- Document confirm\_publish broker transport option ([#10016](https://github.com/celery/celery/issues/10016)) - close DB pools only in prefork mode ([#10020](https://github.com/celery/celery/issues/10020)) - Fix: Avoid unnecessary Django database connection creation during cleanup ([#10015](https://github.com/celery/celery/issues/10015)) - reliable prefork detection ([#10023](https://github.com/celery/celery/issues/10023)) - better coverage ([#10029](https://github.com/celery/celery/issues/10029)) - Docs: clarify `result_extended` vs periodic task metadata and show `headers["periodic_task_name"]` example ([#10030](https://github.com/celery/celery/issues/10030)) - Stop importing pytest\_subtests ([#10032](https://github.com/celery/celery/issues/10032)) - Only use exceptiongroup backport for Python < 3.11 ([#10033](https://github.com/celery/celery/issues/10033)) - Prepare for release: v5.6.1 ([#10037](https://github.com/celery/celery/issues/10037)) .. \_version-5.6.0: ### [`v5.6.1`](https://github.com/celery/celery/releases/tag/v5.6.1) [Compare Source](https://github.com/celery/celery/compare/v5.6.0...v5.6.1) #### What's Changed - Fix Redis Sentinel ACL authentication support by [@anthonykuzmich7](https://github.com/anthonykuzmich7) in [#10013](https://github.com/celery/celery/pull/10013) - Fix: Broker heartbeats not sent during graceful shutdown by [@weetster](https://github.com/weetster) in [#9986](https://github.com/celery/celery/pull/9986) - docs [#5410](https://github.com/celery/celery/issues/5410) -- Document confirm\_publish broker transport option by [@JaeHyuckSa](https://github.com/JaeHyuckSa) in [#10016](https://github.com/celery/celery/pull/10016) - close DB pools only in prefork mode by [@petrprikryl](https://github.com/petrprikryl) in [#10020](https://github.com/celery/celery/pull/10020) - Fix: Avoid unnecessary Django database connection creation during cleanup by [@snopoke](https://github.com/snopoke) in [#10015](https://github.com/celery/celery/pull/10015) - reliable prefork detection by [@petrprikryl](https://github.com/petrprikryl) in [#10023](https://github.com/celery/celery/pull/10023) - better coverage by [@petrprikryl](https://github.com/petrprikryl) in [#10029](https://github.com/celery/celery/pull/10029) - Docs: clarify `result_extended` vs periodic task metadata and show `headers["periodic_task_name"]` example by [@SpaceShaman](https://github.com/SpaceShaman) in [#10030](https://github.com/celery/celery/pull/10030) - Stop importing pytest\_subtests by [@cjwatson](https://github.com/cjwatson) in [#10032](https://github.com/celery/celery/pull/10032) - Only use exceptiongroup backport for Python < 3.11 by [@cjwatson](https://github.com/cjwatson) in [#10033](https://github.com/celery/celery/pull/10033) - Prepare for release: v5.6.1 by [@Nusnus](https://github.com/Nusnus) in [#10037](https://github.com/celery/celery/pull/10037) #### New Contributors - [@anthonykuzmich7](https://github.com/anthonykuzmich7) made their first contribution in [#10013](https://github.com/celery/celery/pull/10013) - [@weetster](https://github.com/weetster) made their first contribution in [#9986](https://github.com/celery/celery/pull/9986) - [@JaeHyuckSa](https://github.com/JaeHyuckSa) made their first contribution in [#10016](https://github.com/celery/celery/pull/10016) - [@snopoke](https://github.com/snopoke) made their first contribution in [#10015](https://github.com/celery/celery/pull/10015) - [@SpaceShaman](https://github.com/SpaceShaman) made their first contribution in [#10030](https://github.com/celery/celery/pull/10030) **Full Changelog**: <https://github.com/celery/celery/compare/v5.6.0...v5.6.1> ### [`v5.6.0`](https://github.com/celery/celery/blob/HEAD/Changelog.rst#560) [Compare Source](https://github.com/celery/celery/compare/v5.5.3...v5.6.0) \===== :release-date: 2025-11-30 :release-by: Tomer Nosrati Celery v5.6.0 is now available. Key Highlights ``` See :ref:`whatsnew-5.6` for a complete overview or read the main highlights below. Python 3.9 Minimum Version -------------------------- Celery 5.6.0 drops support for Python 3.8 (EOL). The minimum required Python version is now 3.9. Users still on Python 3.8 must upgrade their Python version before upgrading to Celery 5.6.0. Additionally, this release includes initial support for Python 3.14. SQS: Reverted to ``pycurl`` from ``urllib3`` -------------------------------------------- The switch from ``pycurl`` to ``urllib3`` for the SQS transport (introduced in Celery 5.5.0 via Kombu) has been reverted due to critical issues affecting SQS users: - Processing throughput dropped from ~100 tasks/sec to ~3/sec in some environments - ``UnknownOperationException`` errors causing container crash loops - Silent message processing failures with no error logs Users of the SQS transport must ensure ``pycurl`` is installed. If you removed ``pycurl`` after upgrading to Celery 5.5.0, you will need to reinstall it. Contributed by `@auvipy <https://github.com/auvipy>`_ in `#9620 <https://github.com/celery/celery/pull/9620>`_. Security Fix: Broker Credential Leak Prevention ------------------------------------------------ Fixed a security issue where broker URLs containing passwords were being logged in plaintext by the delayed delivery mechanism. Broker credentials are now properly sanitized in all log output. Contributed by `@giancarloromeo <https://github.com/giancarloromeo>`_ in `#9997 <https://github.com/celery/celery/pull/9997>`_. Memory Leak Fixes ----------------- Two significant memory leaks have been fixed in this release: **Exception Handling Memory Leak**: Fixed a critical memory leak in task exception handling that was particularly severe on Python 3.11+ due to enhanced traceback data. The fix properly breaks reference cycles in tracebacks to allow garbage collection. Contributed by `@jaiganeshs21 <https://github.com/jaiganeshs21>`_ in `#9799 <https://github.com/celery/celery/pull/9799>`_. **Pending Result Memory Leak**: Fixed a memory leak where ``AsyncResult`` subscriptions were not being cleaned up when results were forgotten. Contributed by `@tsoos99dev <https://github.com/tsoos99dev>`_ in `#9806 <https://github.com/celery/celery/pull/9806>`_. ETA Task Memory Limit --------------------- New configuration option :setting:`worker_eta_task_limit` to prevent out-of-memory crashes when workers fetch large numbers of ETA or countdown tasks. Previously, workers could exhaust available memory when the broker contained many scheduled tasks. Example usage: .. code-block:: python app.conf.worker_eta_task_limit = 1000 Contributed by `@sashu2310 <https://github.com/sashu2310>`_ in `#9853 <https://github.com/celery/celery/pull/9853>`_. Queue Type Selection for Auto-created Queues -------------------------------------------- New configuration options allow specifying the queue type and exchange type when Celery auto-creates missing queues. This is particularly useful for RabbitMQ users who want to use quorum queues with auto-created queues. Configuration options: - :setting:`task_create_missing_queue_type`: Sets the queue type for auto-created queues (e.g., ``quorum``, ``classic``) - :setting:`task_create_missing_queue_exchange_type`: Sets the exchange type for auto-created queues Example usage: .. code-block:: python app.conf.task_create_missing_queue_type = 'quorum' Contributed by `@ghirailghiro <https://github.com/ghirailghiro>`_ in `#9815 <https://github.com/celery/celery/pull/9815>`_. What's Changed ``` - Prepare for release: v5.6.0 ([#10010](https://github.com/celery/celery/issues/10010)) .. \_version-5.6.0rc2: </details> <details> <summary>fastapi/fastapi (fastapi)</summary> ### [`v0.128.0`](https://github.com/fastapi/fastapi/releases/tag/0.128.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.127.1...0.128.0) ##### Breaking Changes - ➖ Drop support for `pydantic.v1`. MR [#14609](https://github.com/fastapi/fastapi/pull/14609) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ✅ Run performance tests only on Pydantic v2. MR [#14608](https://github.com/fastapi/fastapi/pull/14608) by [@tiangolo](https://github.com/tiangolo). ### [`v0.127.1`](https://github.com/fastapi/fastapi/releases/tag/0.127.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.127.0...0.127.1) ##### Refactors - 🔊 Add a custom `FastAPIDeprecationWarning`. MR [#14605](https://github.com/fastapi/fastapi/pull/14605) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add documentary to website. MR [#14600](https://github.com/fastapi/fastapi/pull/14600) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Update translations for de (update-outdated). MR [#14602](https://github.com/fastapi/fastapi/pull/14602) by [@nilslindemann](https://github.com/nilslindemann). - 🌐 Update translations for de (update-outdated). MR [#14581](https://github.com/fastapi/fastapi/pull/14581) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - 🔧 Update pre-commit to use local Ruff instead of hook. MR [#14604](https://github.com/fastapi/fastapi/pull/14604) by [@tiangolo](https://github.com/tiangolo). - ✅ Add missing tests for code examples. MR [#14569](https://github.com/fastapi/fastapi/pull/14569) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Remove `lint` job from `test` CI workflow. MR [#14593](https://github.com/fastapi/fastapi/pull/14593) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Update secrets check. MR [#14592](https://github.com/fastapi/fastapi/pull/14592) by [@tiangolo](https://github.com/tiangolo). - 👷 Run CodSpeed tests in parallel to other tests to speed up CI. MR [#14586](https://github.com/fastapi/fastapi/pull/14586) by [@tiangolo](https://github.com/tiangolo). - 🔨 Update scripts and pre-commit to autofix files. MR [#14585](https://github.com/fastapi/fastapi/pull/14585) by [@tiangolo](https://github.com/tiangolo). ### [`v0.127.0`](https://github.com/fastapi/fastapi/releases/tag/0.127.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.126.0...0.127.0) ##### Breaking Changes - 🔊 Add deprecation warnings when using `pydantic.v1`. MR [#14583](https://github.com/fastapi/fastapi/pull/14583) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🔧 Add LLM prompt file for Korean, generated from the existing translations. MR [#14546](https://github.com/fastapi/fastapi/pull/14546) by [@tiangolo](https://github.com/tiangolo). - 🔧 Add LLM prompt file for Japanese, generated from the existing translations. MR [#14545](https://github.com/fastapi/fastapi/pull/14545) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆️ Upgrade OpenAI model for translations to gpt-5.2. MR [#14579](https://github.com/fastapi/fastapi/pull/14579) by [@tiangolo](https://github.com/tiangolo). ### [`v0.126.0`](https://github.com/fastapi/fastapi/releases/tag/0.126.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.125.0...0.126.0) ##### Upgrades - ➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1`. MR [#14575](https://github.com/fastapi/fastapi/pull/14575) by [@tiangolo](https://github.com/tiangolo). - The minimum version of Pydantic installed is now `pydantic >=2.7.0`. - The `standard` dependencies now include `pydantic-settings >=2.0.0` and `pydantic-extra-types >=2.0.0`. ##### Docs - 📝 Fix duplicated variable in `docs_src/python_types/tutorial005_py39.py`. MR [#14565](https://github.com/fastapi/fastapi/pull/14565) by [@paras-verma7454](https://github.com/paras-verma7454). ##### Translations - 🔧 Add LLM prompt file for Ukrainian, generated from the existing translations. MR [#14548](https://github.com/fastapi/fastapi/pull/14548) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔧 Tweak pre-commit to allow committing release-notes. MR [#14577](https://github.com/fastapi/fastapi/pull/14577) by [@tiangolo](https://github.com/tiangolo). - ⬆️ Use prek as a pre-commit alternative. MR [#14572](https://github.com/fastapi/fastapi/pull/14572) by [@tiangolo](https://github.com/tiangolo). - 👷 Add performance tests with CodSpeed. MR [#14558](https://github.com/fastapi/fastapi/pull/14558) by [@tiangolo](https://github.com/tiangolo). ### [`v0.125.0`](https://github.com/fastapi/fastapi/releases/tag/0.125.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.4...0.125.0) ##### Breaking Changes - 🔧 Drop support for Python 3.8. MR [#14563](https://github.com/fastapi/fastapi/pull/14563) by [@tiangolo](https://github.com/tiangolo). - This would actually not be a *breaking* change as no code would really break. Any Python 3.8 installer would just refuse to install the latest version of FastAPI and would only install 0.124.4. Only marking it as a "breaking change" to make it visible. ##### Refactors - ♻️ Upgrade internal syntax to Python 3.9+ 🎉. MR [#14564](https://github.com/fastapi/fastapi/pull/14564) by [@tiangolo](https://github.com/tiangolo). ##### Docs - ⚰️ Remove Python 3.8 from CI and remove Python 3.8 examples from source docs. MR [#14559](https://github.com/fastapi/fastapi/pull/14559) by [@YuriiMotov](https://github.com/YuriiMotov) and [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Update translations for pt (add-missing). MR [#14539](https://github.com/fastapi/fastapi/pull/14539) by [@tiangolo](https://github.com/tiangolo). - 🔧 Add LLM prompt file for French, generated from the existing French docs. MR [#14544](https://github.com/fastapi/fastapi/pull/14544) by [@tiangolo](https://github.com/tiangolo). - 🌐 Sync Portuguese docs (pages found with script). MR [#14554](https://github.com/fastapi/fastapi/pull/14554) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync Spanish docs (outdated pages found with script). MR [#14553](https://github.com/fastapi/fastapi/pull/14553) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14519](https://github.com/fastapi/fastapi/pull/14519) by [@nilslindemann](https://github.com/nilslindemann). - 🔥 Remove inactive/scarce translations to Vietnamese. MR [#14543](https://github.com/fastapi/fastapi/pull/14543) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove inactive/scarce translations to Persian. MR [#14542](https://github.com/fastapi/fastapi/pull/14542) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove translation to emoji to simplify the new setup with LLM autotranslations. MR [#14541](https://github.com/fastapi/fastapi/pull/14541) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for pt (update-outdated). MR [#14537](https://github.com/fastapi/fastapi/pull/14537) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for es (update-outdated). MR [#14532](https://github.com/fastapi/fastapi/pull/14532) by [@tiangolo](https://github.com/tiangolo). - 🌐 Update translations for es (add-missing). MR [#14533](https://github.com/fastapi/fastapi/pull/14533) by [@tiangolo](https://github.com/tiangolo). - 🌐 Remove translations for removed docs. MR [#14516](https://github.com/fastapi/fastapi/pull/14516) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump `markdown-include-variants` from 0.0.7 to 0.0.8. MR [#14556](https://github.com/fastapi/fastapi/pull/14556) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Temporarily disable translations still in progress, being migrated to the new LLM setup. MR [#14555](https://github.com/fastapi/fastapi/pull/14555) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Update test workflow config, remove commented code. MR [#14540](https://github.com/fastapi/fastapi/pull/14540) by [@tiangolo](https://github.com/tiangolo). - 👷 Configure coverage, error on main tests, don't wait for Smokeshow. MR [#14536](https://github.com/fastapi/fastapi/pull/14536) by [@tiangolo](https://github.com/tiangolo). - 👷 Run Smokeshow always, even on test failures. MR [#14538](https://github.com/fastapi/fastapi/pull/14538) by [@tiangolo](https://github.com/tiangolo). - 👷 Make Pydantic versions customizable in CI. MR [#14535](https://github.com/fastapi/fastapi/pull/14535) by [@tiangolo](https://github.com/tiangolo). - 👷 Fix checkout GitHub Action fetch-depth for LLM translations, enable cron monthly. MR [#14531](https://github.com/fastapi/fastapi/pull/14531) by [@tiangolo](https://github.com/tiangolo). - 👷 Fix Typer command for CI LLM translations. MR [#14530](https://github.com/fastapi/fastapi/pull/14530) by [@tiangolo](https://github.com/tiangolo). - 👷 Update LLM translation CI, add language matrix and extra commands, prepare for scheduled run. MR [#14529](https://github.com/fastapi/fastapi/pull/14529) by [@tiangolo](https://github.com/tiangolo). - 👷 Update github-actions user for GitHub Actions workflows. MR [#14528](https://github.com/fastapi/fastapi/pull/14528) by [@tiangolo](https://github.com/tiangolo). - ➕ Add requirements for translations. MR [#14515](https://github.com/fastapi/fastapi/pull/14515) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.4`](https://github.com/fastapi/fastapi/releases/tag/0.124.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.3...0.124.4) ##### Fixes - 🐛 Fix parameter aliases. MR [#14371](https://github.com/fastapi/fastapi/pull/14371) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.124.3`](https://github.com/fastapi/fastapi/releases/tag/0.124.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.2...0.124.3) ##### Fixes - 🐛 Fix support for tagged union with discriminator inside of `Annotated` with `Body()`. MR [#14512](https://github.com/fastapi/fastapi/pull/14512) by [@tiangolo](https://github.com/tiangolo). ##### Refactors - ✅ Add set of tests for request parameters and alias. MR [#14358](https://github.com/fastapi/fastapi/pull/14358) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Docs - 📝 Tweak links format. MR [#14505](https://github.com/fastapi/fastapi/pull/14505) by [@tiangolo](https://github.com/tiangolo). - 📝 Update docs about re-raising validation errors, do not include string as is to not leak information. MR [#14487](https://github.com/fastapi/fastapi/pull/14487) by [@tiangolo](https://github.com/tiangolo). - 🔥 Remove external links section. MR [#14486](https://github.com/fastapi/fastapi/pull/14486) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Sync Russian docs. MR [#14509](https://github.com/fastapi/fastapi/pull/14509) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14488](https://github.com/fastapi/fastapi/pull/14488) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - 👷 Tweak coverage to not pass Smokeshow max file size limit. MR [#14507](https://github.com/fastapi/fastapi/pull/14507) by [@tiangolo](https://github.com/tiangolo). - ✅ Expand test matrix to include Windows and MacOS. MR [#14171](https://github.com/fastapi/fastapi/pull/14171) by [@svlandeg](https://github.com/svlandeg). ### [`v0.124.2`](https://github.com/fastapi/fastapi/releases/tag/0.124.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.1...0.124.2) ##### Fixes - 🐛 Fix support for `if TYPE_CHECKING`, non-evaluated stringified annotations. MR [#14485](https://github.com/fastapi/fastapi/pull/14485) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.1`](https://github.com/fastapi/fastapi/releases/tag/0.124.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.124.0...0.124.1) ##### Fixes - 🐛 Fix handling arbitrary types when using `arbitrary_types_allowed=True`. MR [#14482](https://github.com/fastapi/fastapi/pull/14482) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add variants for code examples in "Advanced User Guide". MR [#14413](https://github.com/fastapi/fastapi/pull/14413) by [@YuriiMotov](https://github.com/YuriiMotov). - 📝 Update tech stack in project generation docs. MR [#14472](https://github.com/fastapi/fastapi/pull/14472) by [@alejsdev](https://github.com/alejsdev). ##### Internal - ✅ Add test for Pydantic v2, dataclasses, UUID, and `__annotations__`. MR [#14477](https://github.com/fastapi/fastapi/pull/14477) by [@tiangolo](https://github.com/tiangolo). ### [`v0.124.0`](https://github.com/fastapi/fastapi/releases/tag/0.124.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.10...0.124.0) ##### Features - 🚸 Improve tracebacks by adding endpoint metadata. MR [#14306](https://github.com/fastapi/fastapi/pull/14306) by [@savannahostrowski](https://github.com/savannahostrowski). ##### Internal - ✏️ Fix typo in `scripts/mkdocs_hooks.py`. MR [#14457](https://github.com/fastapi/fastapi/pull/14457) by [@yujiteshima](https://github.com/yujiteshima). ### [`v0.123.10`](https://github.com/fastapi/fastapi/releases/tag/0.123.10) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.9...0.123.10) ##### Fixes - 🐛 Fix using class (not instance) dependency that has `__call__` method. MR [#14458](https://github.com/fastapi/fastapi/pull/14458) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix `separate_input_output_schemas=False` with `computed_field`. MR [#14453](https://github.com/fastapi/fastapi/pull/14453) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.9`](https://github.com/fastapi/fastapi/releases/tag/0.123.9) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.8...0.123.9) ##### Fixes - 🐛 Fix OAuth2 scopes in OpenAPI in extra corner cases, parent dependency with scopes, sub-dependency security scheme without scopes. MR [#14459](https://github.com/fastapi/fastapi/pull/14459) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.8`](https://github.com/fastapi/fastapi/releases/tag/0.123.8) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.7...0.123.8) ##### Fixes - 🐛 Fix OpenAPI security scheme OAuth2 scopes declaration, deduplicate security schemes with different scopes. MR [#14455](https://github.com/fastapi/fastapi/pull/14455) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.7`](https://github.com/fastapi/fastapi/releases/tag/0.123.7) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.6...0.123.7) ##### Fixes - 🐛 Fix evaluating stringified annotations in Python 3.10. MR [#11355](https://github.com/fastapi/fastapi/pull/11355) by [@chaen](https://github.com/chaen). ### [`v0.123.6`](https://github.com/fastapi/fastapi/releases/tag/0.123.6) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.5...0.123.6) ##### Fixes - 🐛 Fix support for functools wraps and partial combined, for async and regular functions and classes in path operations and dependencies. MR [#14448](https://github.com/fastapi/fastapi/pull/14448) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.5`](https://github.com/fastapi/fastapi/releases/tag/0.123.5) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.4...0.123.5) ##### Features - ✨ Allow using dependables with `functools.partial()`. MR [#9753](https://github.com/fastapi/fastapi/pull/9753) by [@lieryan](https://github.com/lieryan). - ✨ Add support for wrapped functions (e.g. `@functools.wraps()`) used with forward references. MR [#5077](https://github.com/fastapi/fastapi/pull/5077) by [@lucaswiman](https://github.com/lucaswiman). - ✨ Handle wrapped dependencies. MR [#9555](https://github.com/fastapi/fastapi/pull/9555) by [@phy1729](https://github.com/phy1729). ##### Fixes - 🐛 Fix optional sequence handling with new union syntax from Python 3.10. MR [#14430](https://github.com/fastapi/fastapi/pull/14430) by [@Viicos](https://github.com/Viicos). ##### Refactors - 🔥 Remove dangling extra condiitonal no longer needed. MR [#14435](https://github.com/fastapi/fastapi/pull/14435) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals, update `is_coroutine` check to reuse internal supported variants (unwrap, check class). MR [#14434](https://github.com/fastapi/fastapi/pull/14434) by [@tiangolo](https://github.com/tiangolo). ##### Translations - 🌐 Sync German docs. MR [#14367](https://github.com/fastapi/fastapi/pull/14367) by [@nilslindemann](https://github.com/nilslindemann). ### [`v0.123.4`](https://github.com/fastapi/fastapi/releases/tag/0.123.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.3...0.123.4) ##### Fixes - 🐛 Fix OpenAPI schema support for computed fields when using `separate_input_output_schemas=False`. MR [#13207](https://github.com/fastapi/fastapi/pull/13207) by [@vgrafe](https://github.com/vgrafe). ##### Docs - 📝 Fix docstring of `servers` parameter. MR [#14405](https://github.com/fastapi/fastapi/pull/14405) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.3`](https://github.com/fastapi/fastapi/releases/tag/0.123.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.2...0.123.3) ##### Fixes - 🐛 Fix Query\Header\Cookie parameter model alias. MR [#14360](https://github.com/fastapi/fastapi/pull/14360) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix optional sequence handling in `serialize sequence value` with Pydantic V2. MR [#14297](https://github.com/fastapi/fastapi/pull/14297) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.123.2`](https://github.com/fastapi/fastapi/releases/tag/0.123.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.1...0.123.2) ##### Fixes - 🐛 Fix unformatted `{type_}` in FastAPIError. MR [#14416](https://github.com/fastapi/fastapi/pull/14416) by [@Just-Helpful](https://github.com/Just-Helpful). - 🐛 Fix parsing extra non-body parameter list. MR [#14356](https://github.com/fastapi/fastapi/pull/14356) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix parsing extra `Form` parameter list. MR [#14303](https://github.com/fastapi/fastapi/pull/14303) by [@YuriiMotov](https://github.com/YuriiMotov). - 🐛 Fix support for form values with empty strings interpreted as missing (`None` if that's the default), for compatibility with HTML forms. MR [#13537](https://github.com/fastapi/fastapi/pull/13537) by [@MarinPostma](https://github.com/MarinPostma). ##### Docs - 📝 Add tip on how to install `pip` in case of `No module named pip` error in `virtual-environments.md`. MR [#14211](https://github.com/fastapi/fastapi/pull/14211) by [@zadevhub](https://github.com/zadevhub). - 📝 Update Primary Key notes for the SQL databases tutorial to avoid confusion. MR [#14120](https://github.com/fastapi/fastapi/pull/14120) by [@FlaviusRaducu](https://github.com/FlaviusRaducu). - 📝 Clarify estimation note in documentation. MR [#14070](https://github.com/fastapi/fastapi/pull/14070) by [@SaisakthiM](https://github.com/SaisakthiM). ### [`v0.123.1`](https://github.com/fastapi/fastapi/releases/tag/0.123.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.123.0...0.123.1) ##### Fixes - 🐛 Avoid accessing non-existing "$ref" key for Pydantic v2 compat remapping. MR [#14361](https://github.com/fastapi/fastapi/pull/14361) by [@svlandeg](https://github.com/svlandeg). - 🐛 Fix `TypeError` when encoding a decimal with a `NaN` or `Infinity` value. MR [#12935](https://github.com/fastapi/fastapi/pull/12935) by [@kentwelcome](https://github.com/kentwelcome). ##### Internal - 🐛 Fix Windows UnicodeEncodeError in CLI test. MR [#14295](https://github.com/fastapi/fastapi/pull/14295) by [@hemanth-thirthahalli](https://github.com/hemanth-thirthahalli). - 🔧 Update sponsors: add Greptile. MR [#14429](https://github.com/fastapi/fastapi/pull/14429) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI GitHub topic repositories. MR [#14426](https://github.com/fastapi/fastapi/pull/14426) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump markdown-include-variants from 0.0.6 to 0.0.7. MR [#14423](https://github.com/fastapi/fastapi/pull/14423) by [@YuriiMotov](https://github.com/YuriiMotov). - 👥 Update FastAPI People - Sponsors. MR [#14422](https://github.com/fastapi/fastapi/pull/14422) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Contributors and Translators. MR [#14420](https://github.com/fastapi/fastapi/pull/14420) by [@tiangolo](https://github.com/tiangolo). ### [`v0.123.0`](https://github.com/fastapi/fastapi/releases/tag/0.123.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.122.1...0.123.0) ##### Fixes - 🐛 Cache dependencies that don't use scopes and don't have sub-dependencies with scopes. MR [#14419](https://github.com/fastapi/fastapi/pull/14419) by [@tiangolo](https://github.com/tiangolo). ### [`v0.122.1`](https://github.com/fastapi/fastapi/releases/tag/0.122.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.122.0...0.122.1) ##### Fixes - 🐛 Fix hierarchical security scope propagation. MR [#5624](https://github.com/fastapi/fastapi/pull/5624) by [@kristjanvalur](https://github.com/kristjanvalur). ##### Docs - 💅 Update CSS to explicitly use emoji font. MR [#14415](https://github.com/fastapi/fastapi/pull/14415) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump markdown-include-variants from 0.0.5 to 0.0.6. MR [#14418](https://github.com/fastapi/fastapi/pull/14418) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.122.0`](https://github.com/fastapi/fastapi/releases/tag/0.122.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.3...0.122.0) ##### Fixes - 🐛 Use `401` status code in security classes when credentials are missing. MR [#13786](https://github.com/fastapi/fastapi/pull/13786) by [@YuriiMotov](https://github.com/YuriiMotov). - If your code depended on these classes raising the old (less correct) `403` status code, check the new docs about how to override the classes, to use the same old behavior: [Use Old 403 Authentication Error Status Codes](https://fastapi.tiangolo.com/how-to/authentication-error-status-code/). ##### Internal - 🔧 Configure labeler to exclude files that start from underscore for `lang-all` label. MR [#14213](https://github.com/fastapi/fastapi/pull/14213) by [@YuriiMotov](https://github.com/YuriiMotov). - 👷 Add pre-commit config with local script for permalinks. MR [#14398](https://github.com/fastapi/fastapi/pull/14398) by [@tiangolo](https://github.com/tiangolo). - 💄 Use font Fira Code to fix display of Rich panels in docs in Windows. MR [#14387](https://github.com/fastapi/fastapi/pull/14387) by [@tiangolo](https://github.com/tiangolo). - 👷 Add custom pre-commit CI. MR [#14397](https://github.com/fastapi/fastapi/pull/14397) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump actions/checkout from 5 to 6. MR [#14381](https://github.com/fastapi/fastapi/pull/14381) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - 👷 Upgrade `latest-changes` GitHub Action and pin `actions/checkout@v5`. MR [#14403](https://github.com/fastapi/fastapi/pull/14403) by [@svlandeg](https://github.com/svlandeg). - 🛠️ Add `add-permalinks` and `add-permalinks-page` to `scripts/docs.py`. MR [#14033](https://github.com/fastapi/fastapi/pull/14033) by [@YuriiMotov](https://github.com/YuriiMotov). - 🔧 Upgrade Material for MkDocs and remove insiders. MR [#14375](https://github.com/fastapi/fastapi/pull/14375) by [@tiangolo](https://github.com/tiangolo). ### [`v0.121.3`](https://github.com/fastapi/fastapi/releases/tag/0.121.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.2...0.121.3) ##### 0.121.3 ##### Refactors - ♻️ Make the result of `Depends()` and `Security()` hashable, as a workaround for other tools interacting with these internal parts. MR [#14372](https://github.com/fastapi/fastapi/pull/14372) by [@tiangolo](https://github.com/tiangolo). ##### Upgrades - ⬆️ Bump Starlette to <`0.51.0`. MR [#14282](https://github.com/fastapi/fastapi/pull/14282) by [@musicinmybrain](https://github.com/musicinmybrain). ##### Docs - 📝 Add missing hash part. MR [#14369](https://github.com/fastapi/fastapi/pull/14369) by [@nilslindemann](https://github.com/nilslindemann). - 📝 Fix typos in code comments. MR [#14364](https://github.com/fastapi/fastapi/pull/14364) by [@Edge-Seven](https://github.com/Edge-Seven). - 📝 Add docs for using FastAPI Cloud. MR [#14359](https://github.com/fastapi/fastapi/pull/14359) by [@tiangolo](https://github.com/tiangolo). ### [`v0.121.2`](https://github.com/fastapi/fastapi/releases/tag/0.121.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.1...0.121.2) ##### Fixes - 🐛 Fix handling of JSON Schema attributes named "$ref". MR [#14349](https://github.com/fastapi/fastapi/pull/14349) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Add EuroPython talk & podcast episode with Sebastián Ramírez. MR [#14260](https://github.com/fastapi/fastapi/pull/14260) by [@clytaemnestra](https://github.com/clytaemnestra). - ✏️ Fix links and add missing permalink in docs. MR [#14217](https://github.com/fastapi/fastapi/pull/14217) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Translations - 🌐 Update Portuguese translations with LLM prompt. MR [#14228](https://github.com/fastapi/fastapi/pull/14228) by [@ceb10n](https://github.com/ceb10n). - 🔨 Add Portuguese translations LLM prompt. MR [#14208](https://github.com/fastapi/fastapi/pull/14208) by [@ceb10n](https://github.com/ceb10n). - 🌐 Sync Russian docs. MR [#14331](https://github.com/fastapi/fastapi/pull/14331) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Sync German docs. MR [#14317](https://github.com/fastapi/fastapi/pull/14317) by [@nilslindemann](https://github.com/nilslindemann). ### [`v0.121.1`](https://github.com/fastapi/fastapi/releases/tag/0.121.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.121.0...0.121.1) ##### Fixes - 🐛 Fix `Depends(func, scope='function')` for top level (parameterless) dependencies. MR [#14301](https://github.com/fastapi/fastapi/pull/14301) by [@luzzodev](https://github.com/luzzodev). ##### Docs - 📝 Upate docs for advanced dependencies with `yield`, noting the changes in 0.121.0, adding `scope`. MR [#14287](https://github.com/fastapi/fastapi/pull/14287) by [@tiangolo](https://github.com/tiangolo). ##### Internal - ⬆ Bump ruff from 0.13.2 to 0.14.3. MR [#14276](https://github.com/fastapi/fastapi/pull/14276) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14289](https://github.com/fastapi/fastapi/pull/14289) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). ### [`v0.121.0`](https://github.com/fastapi/fastapi/releases/tag/0.121.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.4...0.121.0) ##### Features - ✨ Add support for dependencies with scopes, support `scope="request"` for dependencies with `yield` that exit before the response is sent. MR [#14262](https://github.com/fastapi/fastapi/pull/14262) by [@tiangolo](https://github.com/tiangolo). - New docs: [Dependencies with `yield` - Early exit and `scope`](https://fastapi.tiangolo.com/tutorial/dependencies/dependencies-with-yield/#early-exit-and-scope). ##### Internal - 👥 Update FastAPI People - Contributors and Translators. MR [#14273](https://github.com/fastapi/fastapi/pull/14273) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Sponsors. MR [#14274](https://github.com/fastapi/fastapi/pull/14274) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI GitHub topic repositories. MR [#14280](https://github.com/fastapi/fastapi/pull/14280) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump mkdocs-macros-plugin from 1.4.0 to 1.4.1. MR [#14277](https://github.com/fastapi/fastapi/pull/14277) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump mkdocstrings\[python] from 0.26.1 to 0.30.1. MR [#14279](https://github.com/fastapi/fastapi/pull/14279) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.120.4`](https://github.com/fastapi/fastapi/releases/tag/0.120.4) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.3...0.120.4) ##### Fixes - 🐛 Fix security schemes in OpenAPI when added at the top level app. MR [#14266](https://github.com/fastapi/fastapi/pull/14266) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.3`](https://github.com/fastapi/fastapi/releases/tag/0.120.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.2...0.120.3) ##### Refactors - ♻️ Reduce internal cyclic recursion in dependencies, from 2 functions calling each other to 1 calling itself. MR [#14256](https://github.com/fastapi/fastapi/pull/14256) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals of dependencies, simplify code and remove `get_param_sub_dependant`. MR [#14255](https://github.com/fastapi/fastapi/pull/14255) by [@tiangolo](https://github.com/tiangolo). - ♻️ Refactor internals of dependencies, simplify using dataclasses. MR [#14254](https://github.com/fastapi/fastapi/pull/14254) by [@tiangolo](https://github.com/tiangolo). ##### Docs - 📝 Update note for untranslated pages. MR [#14257](https://github.com/fastapi/fastapi/pull/14257) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.2`](https://github.com/fastapi/fastapi/releases/tag/0.120.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.1...0.120.2) ##### Fixes - 🐛 Fix separation of schemas with nested models introduced in 0.119.0. MR [#14246](https://github.com/fastapi/fastapi/pull/14246) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔧 Add sponsor: SerpApi. MR [#14248](https://github.com/fastapi/fastapi/pull/14248) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump actions/download-artifact from 5 to 6. MR [#14236](https://github.com/fastapi/fastapi/pull/14236) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14237](https://github.com/fastapi/fastapi/pull/14237) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ⬆ Bump actions/upload-artifact from 4 to 5. MR [#14235](https://github.com/fastapi/fastapi/pull/14235) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.120.1`](https://github.com/fastapi/fastapi/releases/tag/0.120.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.120.0...0.120.1) ##### Upgrades - ⬆️ Bump Starlette to <`0.50.0`. MR [#14234](https://github.com/fastapi/fastapi/pull/14234) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Internal - 🔧 Add `license` and `license-files` to `pyproject.toml`, remove `License` from `classifiers`. MR [#14230](https://github.com/fastapi/fastapi/pull/14230) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.120.0`](https://github.com/fastapi/fastapi/releases/tag/0.120.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.119.1...0.120.0) There are no major nor breaking changes in this release. ☕️ The internal reference documentation now uses `annotated_doc.Doc` instead of `typing_extensions.Doc`, this adds a new (very small) dependency on [`annotated-doc`](https://github.com/fastapi/annotated-doc), a package made just to provide that `Doc` documentation utility class. I would expect `typing_extensions.Doc` to be deprecated and then removed at some point from `typing_extensions`, for that reason there's the new `annotated-doc` micro-package. If you are curious about this, you can read more in the repo for [`annotated-doc`](https://github.com/fastapi/annotated-doc). This new version `0.120.0` only contains that transition to the new home package for that utility class `Doc`. ##### Translations - 🌐 Sync German docs. MR [#14188](https://github.com/fastapi/fastapi/pull/14188) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ➕ Migrate internal reference documentation from `typing_extensions.Doc` to `annotated_doc.Doc`. MR [#14222](https://github.com/fastapi/fastapi/pull/14222) by [@tiangolo](https://github.com/tiangolo). - 🛠️ Update German LLM prompt and test file. MR [#14189](https://github.com/fastapi/fastapi/pull/14189) by [@nilslindemann](https://github.com/nilslindemann). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14181](https://github.com/fastapi/fastapi/pull/14181) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). ### [`v0.119.1`](https://github.com/fastapi/fastapi/releases/tag/0.119.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.119.0...0.119.1) ##### Fixes - 🐛 Fix internal Pydantic v1 compatibility (warnings) for Python 3.14 and Pydantic 2.12.1. MR [#14186](https://github.com/fastapi/fastapi/pull/14186) by [@svlandeg](https://github.com/svlandeg). ##### Docs - 📝 Replace `starlette.io` by `starlette.dev` and `uvicorn.org` by `uvicorn.dev`. MR [#14176](https://github.com/fastapi/fastapi/pull/14176) by [@Kludex](https://github.com/Kludex). ##### Internal - 🔧 Add sponsor Requestly. MR [#14205](https://github.com/fastapi/fastapi/pull/14205) by [@tiangolo](https://github.com/tiangolo). - 🔧 Configure reminder for `waiting` label in `issue-manager`. MR [#14156](https://github.com/fastapi/fastapi/pull/14156) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.119.0`](https://github.com/fastapi/fastapi/releases/tag/0.119.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.3...0.119.0) FastAPI now (temporarily) supports both Pydantic v2 models and `pydantic.v1` models at the same time in the same app, to make it easier for any FastAPI apps still using Pydantic v1 to gradually but quickly **migrate to Pydantic v2**. ```Python from fastapi import FastAPI from pydantic import BaseModel as BaseModelV2 from pydantic.v1 import BaseModel class Item(BaseModel): name: str description: str | None = None class ItemV2(BaseModelV2): title: str summary: str | None = None app = FastAPI() @app.post("/items/", response_model=ItemV2) def create_item(item: Item): return {"title": item.name, "summary": item.description} ``` Adding this feature was a big effort with the main objective of making it easier for the few applications still stuck in Pydantic v1 to migrate to Pydantic v2. And with this, support for **Pydantic v1 is now deprecated** and will be **removed** from FastAPI in a future version soon. **Note**: have in mind that the Pydantic team already stopped supporting Pydantic v1 for recent versions of Python, starting with Python 3.14. You can read in the docs more about how to [Migrate from Pydantic v1 to Pydantic v2](https://fastapi.tiangolo.com/how-to/migrate-from-pydantic-v1-to-pydantic-v2/). ##### Features - ✨ Add support for `from pydantic.v1 import BaseModel`, mixed Pydantic v1 and v2 models in the same app. MR [#14168](https://github.com/fastapi/fastapi/pull/14168) by [@tiangolo](https://github.com/tiangolo). ### [`v0.118.3`](https://github.com/fastapi/fastapi/releases/tag/0.118.3) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.2...0.118.3) ##### Upgrades - ⬆️ Add support for Python 3.14. MR [#14165](https://github.com/fastapi/fastapi/pull/14165) by [@svlandeg](https://github.com/svlandeg). ### [`v0.118.2`](https://github.com/fastapi/fastapi/releases/tag/0.118.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.1...0.118.2) ##### Fixes - 🐛 Fix tagged discriminated union not recognized as body field. MR [#12942](https://github.com/fastapi/fastapi/pull/12942) by [@frankie567](https://github.com/frankie567). ##### Internal - ⬆ Bump astral-sh/setup-uv from 6 to 7. MR [#14167](https://github.com/fastapi/fastapi/pull/14167) by [@dependabot\[bot\]](https://github.com/apps/dependabot). ### [`v0.118.1`](https://github.com/fastapi/fastapi/releases/tag/0.118.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.118.0...0.118.1) ##### Upgrades - 👽️ Ensure compatibility with Pydantic 2.12.0. MR [#14036](https://github.com/fastapi/fastapi/pull/14036) by [@cjwatson](https://github.com/cjwatson). ##### Docs - 📝 Add External Link: Getting started with logging in FastAPI. MR [#14152](https://github.com/fastapi/fastapi/pull/14152) by [@itssimon](https://github.com/itssimon). ##### Translations - 🔨 Add Russian translations LLM prompt. MR [#13936](https://github.com/fastapi/fastapi/pull/13936) by [@tiangolo](https://github.com/tiangolo). - 🌐 Sync German docs. MR [#14149](https://github.com/fastapi/fastapi/pull/14149) by [@nilslindemann](https://github.com/nilslindemann). - 🌐 Add Russian translations for missing pages (LLM-generated). MR [#14135](https://github.com/fastapi/fastapi/pull/14135) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Update Russian translations for existing pages (LLM-generated). MR [#14123](https://github.com/fastapi/fastapi/pull/14123) by [@YuriiMotov](https://github.com/YuriiMotov). - 🌐 Remove configuration files for inactive translations. MR [#14130](https://github.com/fastapi/fastapi/pull/14130) by [@tiangolo](https://github.com/tiangolo). ##### Internal - 🔨 Move local coverage logic to its own script. MR [#14166](https://github.com/fastapi/fastapi/pull/14166) by [@tiangolo](https://github.com/tiangolo). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14161](https://github.com/fastapi/fastapi/pull/14161) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ⬆ Bump griffe-typingdoc from 0.2.8 to 0.2.9. MR [#14144](https://github.com/fastapi/fastapi/pull/14144) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump mkdocs-macros-plugin from 1.3.9 to 1.4.0. MR [#14145](https://github.com/fastapi/fastapi/pull/14145) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump markdown-include-variants from 0.0.4 to 0.0.5. MR [#14146](https://github.com/fastapi/fastapi/pull/14146) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14126](https://github.com/fastapi/fastapi/pull/14126) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - 👥 Update FastAPI GitHub topic repositories. MR [#14150](https://github.com/fastapi/fastapi/pull/14150) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Sponsors. MR [#14139](https://github.com/fastapi/fastapi/pull/14139) by [@tiangolo](https://github.com/tiangolo). - 👥 Update FastAPI People - Contributors and Translators. MR [#14138](https://github.com/fastapi/fastapi/pull/14138) by [@tiangolo](https://github.com/tiangolo). - ⬆ Bump ruff from 0.12.7 to 0.13.2. MR [#14147](https://github.com/fastapi/fastapi/pull/14147) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump sqlmodel from 0.0.24 to 0.0.25. MR [#14143](https://github.com/fastapi/fastapi/pull/14143) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - ⬆ Bump tiangolo/issue-manager from 0.5.1 to 0.6.0. MR [#14148](https://github.com/fastapi/fastapi/pull/14148) by [@dependabot\[bot\]](https://github.com/apps/dependabot). - 👷 Update docs previews comment, single comment, add failure status. MR [#14129](https://github.com/fastapi/fastapi/pull/14129) by [@tiangolo](https://github.com/tiangolo). - 🔨 Modify `mkdocs_hooks.py` to add `title` to page's metadata (remove permalinks in social cards). MR [#14125](https://github.com/fastapi/fastapi/pull/14125) by [@YuriiMotov](https://github.com/YuriiMotov). ### [`v0.118.0`](https://github.com/fastapi/fastapi/releases/tag/0.118.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.117.1...0.118.0) ##### 0.118.0 ##### Fixes - 🐛 Fix support for `StreamingResponse`s with dependencies with `yield` or `UploadFile`s, close after the response is done. MR [#14099](https://github.com/fastapi/fastapi/pull/14099) by [@tiangolo](https://github.com/tiangolo). Before FastAPI 0.118.0, if you used a dependency with `yield`, it would run the exit code after the *path operation function* returned but right before sending the response. This change also meant that if you returned a `StreamingResponse`, the exit code of the dependency with `yield` would have been already run. For example, if you had a database session in a dependency with `yield`, the `StreamingResponse` would not be able to use that session while streaming data because the session would have already been closed in the exit code after `yield`. This behavior was reverted in 0.118.0, to make the exit code after `yield` be executed after the response is sent. You can read more about it in the docs for [Advanced Dependencies - Dependencies with `yield`, `HTTPException`, `except` and Background Tasks](https://fastapi.tiangolo.com/advanced/advanced-dependencies#dependencies-with-yield-httpexception-except-and-background-tasks). Including what you could do if you wanted to close a database session earlier, before returning the response to the client. ##### Docs - 📝 Update `tutorial/security/oauth2-jwt/` to use `pwdlib` with Argon2 instead of `passlib`. MR [#13917](https://github.com/fastapi/fastapi/pull/13917) by [@Neizvestnyj](https://github.com/Neizvestnyj). - ✏️ Fix typos in OAuth2 password request forms. MR [#14112](https://github.com/fastapi/fastapi/pull/14112) by [@alv2017](https://github.com/alv2017). - 📝 Update contributing guidelines for installing requirements. MR [#14095](https://github.com/fastapi/fastapi/pull/14095) by [@alejsdev](https://github.com/alejsdev). ##### Translations - 🌐 Sync German docs. MR [#14098](https://github.com/fastapi/fastapi/pull/14098) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ⬆ \[pre-commit.ci] pre-commit autoupdate. MR [#14103](https://github.com/fastapi/fastapi/pull/14103) by [@pre-commit-ci\[bot\]](https://github.com/apps/pre-commit-ci). - ♻️ Refactor sponsor image handling. MR [#14102](https://github.com/fastapi/fastapi/pull/14102) by [@alejsdev](https://github.com/alejsdev). - 🐛 Fix sponsor display issue by hiding element on image error. MR [#14097](https://github.com/fastapi/fastapi/pull/14097) by [@alejsdev](https://github.com/alejsdev). - 🐛 Hide sponsor badge when sponsor image is not displayed. MR [#14096](https://github.com/fastapi/fastapi/pull/14096) by [@alejsdev](https://github.com/alejsdev). ### [`v0.117.1`](https://github.com/fastapi/fastapi/releases/tag/0.117.1) [Compare Source](https://github.com/fastapi/fastapi/compare/0.117.0...0.117.1) ##### Fixes - 🐛 Fix validation error when `File` is declared after `Form` parameter. MR [#11194](https://github.com/fastapi/fastapi/pull/11194) by [@thomasleveil](https://github.com/thomasleveil). ### [`v0.117.0`](https://github.com/fastapi/fastapi/releases/tag/0.117.0) [Compare Source](https://github.com/fastapi/fastapi/compare/0.116.2...0.117.0) ##### Features - ✨ Allow `None` as return type for bodiless responses. MR [#9425](https://github.com/fastapi/fastapi/pull/9425) by [@hofrob](https://github.com/hofrob). - ✨ Allow array values for OpenAPI schema `type` field. MR [#13639](https://github.com/fastapi/fastapi/pull/13639) by [@sammasak](https://github.com/sammasak). - ✨ Add OpenAPI `external_docs` parameter to `FastAPI`. MR [#13713](https://github.com/fastapi/fastapi/pull/13713) by [@cmtoro](https://github.com/cmtoro). ##### Fixes - ⚡️ Fix `default_factory` for response model field with Pydantic V1. MR [#9704](https://github.com/fastapi/fastapi/pull/9704) by [@vvanglro](https://github.com/vvanglro). - 🐛 Fix inconsistent processing of model docstring formfeed char with Pydantic V1. MR [#6039](https://github.com/fastapi/fastapi/pull/6039) by [@MaxwellPayne](https://github.com/MaxwellPayne). - 🐛 Fix `jsonable_encoder` alters `json_encoders` of Pydantic v1 objects. MR [#4972](https://github.com/fastapi/fastapi/pull/4972) by [@aboubacs](https://github.com/aboubacs). - 🐛 Reenable `allow_arbitrary_types` when only 1 argument is used on the API endpoint. MR [#13694](https://github.com/fastapi/fastapi/pull/13694) by [@rmawatson](https://github.com/rmawatson). - 🐛 Fix `inspect.getcoroutinefunction()` can break testing with `unittest.mock.patch()`. MR [#14022](https://github.com/fastapi/fastapi/pull/14022) by [@secrett2633](https://github.com/secrett2633). ##### Refactors - ♻️ Create `dependency-cache` dict in `solve_dependencies` only if `None` (don't re-create if empty). MR [#13689](https://github.com/fastapi/fastapi/pull/13689) by [@bokshitsky](https://github.com/bokshitsky). - ✅ Enable test case for duplicated headers in `test_tutorial/test_header_params/test_tutorial003.py`. MR [#13864](https://github.com/fastapi/fastapi/pull/13864) by [@Amogha-ark](https://github.com/Amogha-ark). - 📌 Pin `httpx` to `>=0.23.0,<1.0.0`. MR [#14086](https://github.com/fastapi/fastapi/pull/14086) by [@YuriiMotov](https://github.com/YuriiMotov). ##### Docs - 📝 Add note about Cookies and JavaScript on `tutorial/cookie-params.md`. MR [#13510](https://github.com/fastapi/fastapi/pull/13510) by [@Kludex](https://github.com/Kludex). - 📝 Remove outdated formatting from `path-params-numeric-validations.md` for languages `en`, `es` and `uk`.. MR [#14059](https://github.com/fastapi/fastapi/pull/14059) by [@svlandeg](https://github.com/svlandeg). - 📝 Fix and Improve English Documentation. MR [#14048](https://github.com/fastapi/fastapi/pull/14048) by [@nilslindemann](https://github.com/nilslindemann). ##### Translations - 📝 Update prompts and German translation. MR [#14015](https://github.com/fastapi/fastapi/pull/14015) by [@nilslindemann](https://github.com/nilslindemann). ##### Internal - ✅ Simplify tests for response\_model. MR [#14062](https://github.com/fastapi/fastapi/pull/14062) by [@dynamicy](https://github.com/dynamicy). - 🚨 Install pydantic.mypy plugin. MR [#14081](https://github.com/fastapi/fastapi/pull/14081) by [@svlandeg](https://github.com/svlandeg). - ✅ Add LLM test file. MR [#14049](https://github.com/fastapi/fastapi/pull/14049) by [@nilslindemann](https://github.com/nilslindemann). - 🔨 Update translations script. MR [#13968](https://github.com/fastapi/fastapi/pull/13968) by [@YuriiMotov](https://github.com/YuriiMotov). - 🛠️ Update `docs.py generate-readme` command to remove permalinks from headers. MR [#14055](https://github.com/fastapi/fastapi/pull/14055) by [@YuriiMotov](https://github.com/YuriiMotov). - ⬆️ Update mypy to 1.14.1. MR [#12970](https://github.com/fastapi/fastapi/pull/12970) by [@tamird](https://github.com/tamird). ### [`v0.116.2`](https://github.com/fastapi/fastapi/releases/tag/0.116.2) [Compare Source](https://github.com/fastapi/fastapi/compare/0.116.1...0.116.2) ##### Upgrades - ⬆️ Upgrade Starlette supported version range to >=0.40.0,<0.49.0. MR [#14077](https://github.com/fastapi/fastapi/pull/14077) by [@musicinmybrain](https://github.com/musicinmybrain). ##### Docs - 📝 Add documentation for Behind a Proxy - Proxy Forwarded Headers, using `--forwarded-allow-ips="*"`. MR [#14028](https://github.com/fastapi/fastapi/pull/14028) by [@tiangolo](https://github.com/tiangolo). - 📝 Add deprecation info block about `dict()` in `docs/tutorial/body.md`. MR [#13906](https://github.com/fastapi/fastapi/pull/13906) by [@jomkv](https://github.com/jomkv). - 📝 Fix Twitter to be X (Twitter) ev…

tiangolo and others added 20 commits December 20, 2025 11:06

➖ Drop support for Pydantic v1

ade54ae

👷 Do not test installing Pydantic v1

b492a08

📝 Update docs mentioning Pydantic v1

bcdf0c0

📝 Remove more docs mentions to Pydantic v1

d94344c

📝 Update docs to use Pydantic v2 syntax

3bdd9c0

♻️ Update tests and source docs to not depend on Pydantic v1

842edf9

🔥 Remove conditionals checking if Pydantic v1 was installed, first pass

00c8b73

🔥 Remove additional usages of Pydantic v1

1586ee9

🔥 Remove conditional that would only apply on Pydantic v1

53aac26

🔥 Remove test variants for Pydantic v1 with pydantic_snapshot

cd93507

🔥 Remove decorators of needs_pydanticv2

4445822

🔥 Remove marker needs_pydantic_v2

9943311

🔥 Remove missing file with needs_pydantic_v2

b2f4aae

✅ Add tests for dicts in models in pydantic.v1 for coverage

6a438d7

🔥 Remove conditional with dataclasses that would only happen in Pydan…

f2f4983

…tic v1

🔥 Remove Pydantic v1 only tests

0cbc790

🔥 Remove logic that would only happen in Pydantic v1

b7070c3

🔥 Remove model_rebuild compat with Pydantic v1

dc9342a

🔥 Remove unreachable Pydantic v1 code

19c9e87

🎨 Auto format

2ead760

tiangolo added breaking upgrade and removed breaking labels Dec 20, 2025

tiangolo added 5 commits December 20, 2025 15:07

👷 Add CI tests for Python 3.9 with coverage

5bc66ef

🎨 Tweak types and ignores for linting

ab7c154

👷 Tweak tests for coverage

320fce5

🔥 Remove unused util

b44d6c5

✅ Recreate test for form feed, for pydantic.v1 and converage

f34fcbe

tiangolo added 4 commits December 20, 2025 16:06

👷 Update coverage config in CI

a2ee806

✅ Add tests for jsonable_encoder, covered before by Pydantic v1

88d5ab5

✅ Add test for coverage for jsonable_encoder

bcf56a5

📝 Update phrasing for Pydantic v2

318473a

tiangolo marked this pull request as ready for review December 20, 2025 15:46

tiangolo merged commit e2cd8a4 into master Dec 20, 2025
31 checks passed

tiangolo deleted the nopv1-2 branch December 20, 2025 15:55

potiuk mentioned this pull request Dec 21, 2025

Limit fast-api to not include 0.126.0 version apache/airflow#59681

Merged

potiuk mentioned this pull request Dec 21, 2025

Remove alias for schema field in Connection response apache/airflow#59685

Closed

nilslindemann added a commit to nilslindemann/fastapi that referenced this pull request Dec 21, 2025

Sync with fastapi#14575 (Drop support for Pydantic v1)

3c48146

johnslavik reviewed Dec 21, 2025

View reviewed changes

johnslavik mentioned this pull request Dec 21, 2025

Also dump v2 models in _prepare_response_content #14582

Closed

This was referenced Dec 21, 2025

[v3-1-test] Limit fast-api to not include 0.126.0 version (#59681) apache/airflow#59697

Closed

Cadwyn is incompatible with fastapi > 0.125.0 zmievsa/cadwyn#314

Closed

YuriiMotov pushed a commit that referenced this pull request Dec 24, 2025

🌐 Update translations for de (update-outdated) (#14581)

7203e86

* Sync with #14575 (Drop support for Pydantic v1) * Add a word and fix a typo Found while syncing.

potiuk mentioned this pull request Dec 27, 2025

Fast API 0.128.0 (dropping Pydantic v1) broke Cadwyn zmievsa/cadwyn#316

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➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1` #14575

➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1` #14575

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➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's pydantic.v1 #14575

➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's pydantic.v1 #14575

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➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1` #14575

➖ Drop support for Pydantic v1, keeping short temporary support for Pydantic v2's `pydantic.v1` #14575

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