[python] Add --functions-beta flag to vercel deploy. by gscho · Pull Request #15892 · vercel/vercel

gscho · 2026-04-09T19:03:02Z

Adds --functions-beta flag to vercel deploy. The goal is for python users to be able to opt-in to deploying their functions on hive which has higher limits on deployment size.

Doc link: https://www.notion.so/vercel/Python-on-Hive-Beta-Opt-in-launch-plan-33ce06b059c4804bb21ce2a6dd58d71a

Signed-off-by: gscho <greg.c.schofield@gmail.com>

github-actions · 2026-04-09T19:03:32Z

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vercel · 2026-04-09T19:04:58Z

Low Risk — New opt-in CLI flag for Python deployments with proper validation and user-initiated project config update.

command.ts: added hidden --functions-beta and --no-functions-beta CLI flags
index.ts: added applyFunctionsBetaToggle() to PATCH project config with framework validation
process-deployment.ts: added FunctionsSizeLimitError handling to suggest --functions-beta on size errors

^{Assessed at 9b5fabb.}

changeset-bot · 2026-04-09T19:05:07Z

🦋 Changeset detected

Latest commit: 9b5fabb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 17 packages

Name	Type
@vercel/build-utils	Minor
@vercel/python	Minor
vercel	Minor
@vercel/backends	Patch
@vercel/client	Patch
@vercel/elysia	Patch
@vercel/express	Patch
@vercel/fastify	Patch
@vercel/fs-detectors	Patch
@vercel/gatsby-plugin-vercel-builder	Patch
@vercel/h3	Patch
@vercel/hono	Patch
@vercel/koa	Patch
@vercel/nestjs	Patch
@vercel/node	Patch
@vercel/static-build	Patch
@vercel/cervel	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

github-actions · 2026-04-09T19:06:51Z

🧪 Unit Test Strategy

Comparing: bb66fe4 → 9b5fabb (view diff)

Strategy: Code changed outside of a package - running all unit tests

⚠️ All unit tests will run because global code changes could impact all packages.

Affected packages - 40 (100%)

@vercel-internals/get-package-json
@vercel/backends
@vercel/build-utils
@vercel/cervel
@vercel/cli-auth
@vercel/client
@vercel/config
@vercel/detect-agent
@vercel/edge
@vercel/elysia
@vercel/error-utils
@vercel/express
@vercel/fastify
@vercel/firewall
@vercel/frameworks
@vercel/fs-detectors
@vercel/functions
@vercel/gatsby-plugin-vercel-builder
@vercel/go
@vercel/h3
@vercel/hono
@vercel/hydrogen
@vercel/koa
@vercel/nestjs
@vercel/next
@vercel/node
@vercel/oidc
@vercel/oidc-aws-credentials-provider
@vercel/python
@vercel/python-analysis
@vercel/redwood
@vercel/related-projects
@vercel/remix-builder
@vercel/routing-utils
@vercel/ruby
@vercel/rust
@vercel/static-build
@vercel/static-config
examples
vercel

Results

Unit tests: All affected packages will run unit tests
E2E tests: Running in parallel via E2E Tests workflow
Type checks: All affected packages will run type checks

This comment is automatically generated based on the affected testing strategy

Signed-off-by: gscho <greg.c.schofield@gmail.com>

This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @vercel/build-utils@13.16.0 ### Minor Changes - Add shared deserialization and build-result collection utilities. ([#15961](#15961)) - Add root to experimentalServices to set a service's working directory. ([#15929](#15929)) - Add a new flag to vercel deploy to let users deploy to hive ([#15892](#15892)) ## vercel@51.3.0 ### Minor Changes - Add `vercel alerts inspect` to fetch a single alert group by id with linked project, explicit `--project`, or `--all` scope. ([#15850](#15850)) - Add root to experimentalServices to set a service's working directory. ([#15929](#15929)) - Add a new flag to vercel deploy to let users deploy to hive ([#15892](#15892)) ### Patch Changes - Return 3xx responses directly in `client.fetch()` when `redirect: 'manual'` is passed, instead of entering the error/retry path. ([#15953](#15953)) - Add JSON feature flag support to the CLI so flags can be created, updated, listed, inspected, and set with JSON variant values just like existing boolean, string, and number kinds. ([#15741](#15741)) This aligns the CLI with the recent API and dashboard changes for `json` flags, including parsing raw JSON inputs and preserving structured values in output. - Display case-insensitive feature flag rule comparisons correctly in the CLI. ([#15743](#15743)) - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 - @vercel/python@6.32.0 - @vercel/backends@0.0.61 - @vercel/elysia@0.1.64 - @vercel/express@0.1.74 - @vercel/fastify@0.1.67 - @vercel/go@3.5.0 - @vercel/h3@0.1.73 - @vercel/hono@0.2.67 - @vercel/hydrogen@1.3.6 - @vercel/koa@0.1.47 - @vercel/nestjs@0.2.68 - @vercel/next@4.16.7 - @vercel/node@5.7.6 - @vercel/redwood@2.4.12 - @vercel/remix-builder@5.7.2 - @vercel/ruby@2.3.2 - @vercel/rust@1.1.0 - @vercel/static-build@2.9.14 ## @vercel/config@0.2.0 ### Minor Changes - Add root to experimentalServices to set a service's working directory. ([#15929](#15929)) ## @vercel/fs-detectors@5.17.0 ### Minor Changes - Add root to experimentalServices to set a service's working directory. ([#15929](#15929)) ### Patch Changes - fix(node): scope entrypoint filter to `api/` directory only ([#15954](#15954)) - Add actix framework preset ([#15752](#15752)) - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`620c42ffa6d335c9a6e3e57a1e81c522696b7c2c`](620c42f), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 - @vercel/frameworks@3.24.1 ## @vercel/python@6.32.0 ### Minor Changes - Add a new flag to vercel deploy to let users deploy to hive ([#15892](#15892)) ## @vercel/backends@0.0.61 ### Patch Changes - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 ## @vercel/cervel@0.0.48 ### Patch Changes - Updated dependencies \[]: - @vercel/backends@0.0.61 ## @vercel/client@17.3.3 ### Patch Changes - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 ## @vercel/elysia@0.1.64 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/express@0.1.74 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 - @vercel/cervel@0.0.48 ## @vercel/fastify@0.1.67 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/frameworks@3.24.1 ### Patch Changes - Add actix framework preset ([#15752](#15752)) ## @vercel/gatsby-plugin-vercel-builder@2.1.14 ### Patch Changes - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 ## @vercel/h3@0.1.73 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/hono@0.2.67 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/koa@0.1.47 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/nestjs@0.2.68 ### Patch Changes - Updated dependencies \[]: - @vercel/node@5.7.6 ## @vercel/node@5.7.6 ### Patch Changes - Updated dependencies \[[`86d1f5b3cbd520af2632d4a3d6a1f24557448c0e`](86d1f5b), [`1056be976b6ba9b42cc1e2ffe895d255ab6c9850`](1056be9), [`c27eedaa1b0e3f6e3770b578f62e5463d82f06e0`](c27eeda)]: - @vercel/build-utils@13.16.0 ## @vercel/static-build@2.9.14 ### Patch Changes - Updated dependencies \[]: - @vercel/gatsby-plugin-vercel-builder@2.1.14 Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Add --enable-functions-beta flag to vercel deploy.

312526a

Signed-off-by: gscho <greg.c.schofield@gmail.com>

Merge branch 'main' into gscho/PY-121-enable-python-on-hive

f2f0277

vercel Bot deployed to Preview April 13, 2026 13:54 View deployment

Extract array to constant and add more unit tests.

19a289a

Signed-off-by: gscho <greg.c.schofield@gmail.com>

vercel Bot deployed to Preview April 13, 2026 15:04 View deployment

Set explicit 1GB limit for python on hive.

a10f11a

Signed-off-by: gscho <greg.c.schofield@gmail.com>

gscho marked this pull request as ready for review April 13, 2026 15:29

gscho requested review from a team as code owners April 13, 2026 15:29

vercel Bot deployed to Preview April 13, 2026 15:30 View deployment

gscho changed the title ~~[python] Add --enable-functions-beta flag to vercel deploy.~~ [python] Add --functions-beta flag to vercel deploy. Apr 13, 2026

Add changeset.

131ca5c

Signed-off-by: gscho <greg.c.schofield@gmail.com>

vercel Bot deployed to Preview April 13, 2026 15:37 View deployment

nsidnev approved these changes Apr 13, 2026

View reviewed changes

Merge branch 'main' into gscho/PY-121-enable-python-on-hive

1c7a303

vercel Bot deployed to Preview April 13, 2026 20:13 View deployment

ricardo-agz approved these changes Apr 13, 2026

View reviewed changes

Merge branch 'main' into gscho/PY-121-enable-python-on-hive

9b5fabb

gscho enabled auto-merge (squash) April 14, 2026 13:47

vercel Bot deployed to Preview April 14, 2026 13:47 View deployment

gscho merged commit c27eeda into main Apr 14, 2026
358 of 367 checks passed

gscho deleted the gscho/PY-121-enable-python-on-hive branch April 14, 2026 21:41

vercel-cli-release-bot mentioned this pull request Apr 14, 2026

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[python] Add --functions-beta flag to vercel deploy.#15892

[python] Add --functions-beta flag to vercel deploy.#15892
gscho merged 7 commits into
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