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base repository: a2aproject/a2a-python
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base: v0.3.20
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head repository: a2aproject/a2a-python
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compare: v0.3.21
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  • 4 commits
  • 25 files changed
  • 4 contributors

Commits on Dec 12, 2025

  1. docs: Fixing typos (#586) 

    # Description

Just fixing various typos discovered while reading code of the repo: see
commit diffs for details

Cheers

Didier

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- [X] Ensure the tests and linter pass (Run `bash scripts/format.sh`
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- [X] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> 🦕

N/A

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
    @didier-durand @gemini-code-assist
    didier-durand and gemini-code-assist[bot] authored Dec 12, 2025
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  2. feat: Implement Agent Card Signing and Verification per Spec (#581) 

    This PR introduces digital signatures for Agent Cards to ensure
authenticity and integrity, adhering to the A2A specification for [Agent
Card Signing (Section
8.4).](https://a2a-protocol.org/latest/specification/#84-agent-card-signing)

## Changes:
- Implement `Canonicalization` Logic (`src/a2a/utils/signing.py`)
- Add `Signing` and `Verification` Utilities
(`src/a2a/utils/signing.py`):
- `create_agent_card_signer` which generates an `agent_card_signer` for
signing `AgentCards`
- `create_signature_verifier` which generates a `signature_verifier` for
verification of `AgentCard` signatures
- Enable signature verification support for `json-rpc`, `rest` and
`gRPC` transports
- Add Protobuf Conversion for Signatures
(`src/a2a/utils/proto_utils.py`) ensuring `AgentCardSignature` can be
serialized and deserialized for gRPC transport
- Add related tests:
   - integration tests for fetching signed cards from the Server
   - unit tests for signing util
   - unit tests for protobuf conversions 



- [x] Follow the [`CONTRIBUTING`
Guide](https://github.com/a2aproject/a2a-python/blob/main/CONTRIBUTING.md).
- [x] Make your Pull Request title in the
<https://www.conventionalcommits.org/> specification.
- Important Prefixes for
[release-please](https://github.com/googleapis/release-please):
- `fix:` which represents bug fixes, and correlates to a
[SemVer](https://semver.org/) patch.
- `feat:` represents a new feature, and correlates to a SemVer minor.
- `feat!:`, or `fix!:`, `refactor!:`, etc., which represent a breaking
change (indicated by the `!`) and will result in a SemVer major.
- [x] Ensure the tests and linter pass (Run `bash scripts/format.sh`
from the repository root to format)
- [x] Appropriate docs were updated (if necessary)

Release-As: 0.3.21
    @sokoliva
    sokoliva authored Dec 12, 2025
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  3. chore: Fixing typos (final round) (#588) 

    # Description

Read further and discovered this additional (and final) set of typos
    @didier-durand
    didier-durand authored Dec 12, 2025
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  4. chore(main): release 0.3.21 (#587) 

    🤖 I have created a release *beep* *boop*
---


##
[0.3.21](v0.3.20...v0.3.21)
(2025-12-12)


### Documentation

* Fixing typos
([#586](#586))
([5fea21f](5fea21f))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
    @a2a-bot
    a2a-bot authored Dec 12, 2025
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