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52 release notes curated from 1 source by the Releasebot Team. Last updated: Sep 30, 2026

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Tiangolo Products

FastAPI

52 release notes

Sep 30, 2026
Date parsed from source:
Sep 30, 2026

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Sep 30, 2026
FastAPI by Tiangolo

0.142.2

FastAPI fixes startup handling when automatic OpenTelemetry configuration fails.

Fixes

🐛 Allow startup when automatic OpenTelemetry configuration fails. PR #16418 by @tiangolo.
Original source
Sep 29, 2026
Date parsed from source:
Sep 29, 2026

First seen by Releasebot:
Sep 29, 2026
FastAPI by Tiangolo

0.142.1

FastAPI fixes repeated endpoint wrapping in included routers for cleaner router behavior.

Fixes

🐛 Fix repeated endpoint wrapping in included routers. PR #16414 by @tiangolo.
Original source
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Sep 29, 2026
Date parsed from source:
Sep 29, 2026

First seen by Releasebot:
Sep 29, 2026
FastAPI by Tiangolo

0.142.0

FastAPI adds native OpenTelemetry support and improves the docs experience with better mobile responsiveness, updated conference rails, refreshed event banners, and smarter Termynal controls, alongside broad translation and dependency updates.

Features

✨ Add native OpenTelemetry support. PR #16403 by @tiangolo.

Refactors

📱 Improve mobile responsiveness of conference rail. PR #16196 by @alejsdev.

♻️ Remove conf section and add event banner. PR #16193 by @alejsdev.

Docs

🔥 Remove unused image. PR #16195 by @alejsdev.

🐛 Use buttons for Termynal controls. PR #16132 by @tiangolo.

Translations

🌐 Update translations for hi (update-outdated). PR #16212 by @pr-submit[bot].

🌐 Update translations for ru (update-outdated). PR #16210 by @pr-submit[bot].

🌐 Update translations for zh-hant (update-outdated). PR #16211 by @pr-submit[bot].

🌐 Update translations for uk (update-outdated). PR #16208 by @pr-submit[bot].

🌐 Update translations for de (update-outdated). PR #16209 by @pr-submit[bot].

🌐 Update translations for tr (update-outdated). PR #16207 by @pr-submit[bot].

🌐 Update translations for ja (update-outdated). PR #16206 by @pr-submit[bot].

🌐 Update translations for fr (update-outdated). PR #16205 by @pr-submit[bot].

🌐 Update translations for zh (update-outdated). PR #16204 by @pr-submit[bot].

🌐 Update translations for es (update-outdated). PR #16203 by @pr-submit[bot].

🌐 Update translations for pt (update-outdated). PR #16202 by @pr-submit[bot].

🌐 Update translations for ko (update-outdated). PR #16201 by @pr-submit[bot].

🌐 Update translations for ko (update-outdated). PR #16171 by @pr-submit[bot].

Internal

✅ Fix frontend test timeout with Starlette Git. PR #16408 by @YuriiMotov.

🔧 Update sponsors: remove Permit.io. PR #16406 by @tiangolo.

⬆ Bump anyio from 4.12.1 to 4.14.2. PR #16375 by @dependabot[bot].

⬆ Bump the python-packages group across 1 directory with 15 updates. PR #16285 by @dependabot[bot].

⬆ Bump starlette from 1.3.1 to 1.6.0. PR #16289 by @dependabot[bot].

⬆ Bump annotated-doc from 0.0.4 to 0.0.5. PR #16288 by @dependabot[bot].

⬆ Bump typing-inspection from 0.4.2 to 0.4.4. PR #16286 by @dependabot[bot].

⬆ Bump fastar from 0.11.0 to 0.12.0. PR #16287 by @dependabot[bot].

⬆ Bump the github-actions group with 5 updates. PR #16284 by @dependabot[bot].

⬆ Bump pre-commit hooks. PR #16290 by @pr-submit[bot].

👥 Update FastAPI GitHub topic repositories. PR #16291 by @pr-submit[bot].

👥 Update FastAPI People - Sponsors. PR #16282 by @pr-submit[bot].

⬆️ Bump Typer min version to 0.26.1. PR #16252 by @YuriiMotov.

⬆️ Bump setup-uv action to 10.0.1. PR #16249 by @YuriiMotov.

👷 Update translation PR branches with PR Push. PR #16224 by @tiangolo.

⏪️ Restore commit_in_place input in translate.yml. PR #16216 by @YuriiMotov.

👷 Migrate automatic labels to Latest Changes. PR #16185 by @tiangolo.

👷 Fix branch name in zizmor.yml workflow (main -> master). PR #16178 by @YuriiMotov.

👷 Remove legacy label check. PR #16180 by @tiangolo.

⬆ Bump pymdown-extensions from 11.0 to 11.0.1. PR #16162 by @dependabot[bot].

⬆ Bump gitpython from 3.1.57 to 3.1.58. PR #16157 by @dependabot[bot].

👥 Update FastAPI People - Sponsors. PR #16175 by @pr-submit[bot].

🐛 Fix Sponsors Git authentication. PR #16174 by @tiangolo.

👥 Update FastAPI GitHub topic repositories. PR #16173 by @pr-submit[bot].

🔐 Use PR Submit for automated updates. PR #16172 by @tiangolo.

🔐 Use PR Submit for translations. PR #16168 by @tiangolo.

⬆️ Raise pytest-xdist minimum. PR #16170 by @tiangolo.

🔐 Use PR Submit for pull requests. PR #16167 by @tiangolo.

👷 Use GitHub CLI for Git authentication. PR #16166 by @tiangolo.

👷 Use PR Push commit identity. PR #16164 by @tiangolo.

🔒 Replace pre-commit PAT with PR Push. PR #16161 by @tiangolo.

👷 Disable saving Zensical's .cache in build-docs.yml. PR #16156 by @YuriiMotov.

🔥 Remove the old Latest Changes workflow. PR #16148 by @tiangolo.

⬆ Bump the python-packages group with 12 updates. PR #16121 by @dependabot[bot].

⬆ Bump cryptography from 48.0.1 to 50.0.0. PR #16142 by @dependabot[bot].

⬆ Bump gitpython from 3.1.54 to 3.1.57. PR #16141 by @dependabot[bot].

⬆ Bump the github-actions group with 6 updates. PR #16120 by @dependabot[bot].

👥 Update FastAPI GitHub topic repositories. PR #16122 by @tiangolo.

👥 Update FastAPI People - Sponsors. PR #16119 by @tiangolo.
Original source
Jul 29, 2026
Date parsed from source:
Jul 29, 2026

First seen by Releasebot:
Jul 30, 2026
FastAPI by Tiangolo

0.141.1

FastAPI fixes app.frontend() background tasks and dependency headers, plus documents FASTAPI_ENV in the CLI guide.

Fixes

🐛 Fix support for background tasks and headers from dependencies in app.frontend(). PR #16105 by @tiangolo.

Docs

📝 Document FASTAPI_ENV in FastAPI CLI guide. PR #16104 by @tiangolo.
Original source
Jul 29, 2026
Date parsed from source:
Jul 29, 2026

First seen by Releasebot:
Jul 30, 2026
FastAPI by Tiangolo

0.141.0

FastAPI adds app.frontend(check_dir="auto") to make local development more convenient with fastapi dev.

Features

✨ Add app.frontend(check_dir="auto"), to make local development more convenient with fastapi dev. PR #16102 by @tiangolo.
Original source
Similar to Tiangolo with recent updates:
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

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Jul 29, 2026
FastAPI by Tiangolo

0.140.13

FastAPI fixes SSE and JSONL streaming status codes and improves SSE docs and API reference.

Fixes

🐛 Fix status_code being ignored for SSE and JSONL streaming endpoints. PR #15937 by @SAURABHSALVE.

Docs

📝 Fix format_sse_event docstring rendering of \n\n terminator. PR #15613 by @AshNicolus.

📝 Add API reference page for fastapi.sse. PR #15930 by @SAURABHSALVE.
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026
FastAPI by Tiangolo

0.140.12

FastAPI fixes SSE line splitting in format_sse_event to comply with the SSE spec.

Fixes

🐛 Fix line splitting in format_sse_event to comply with SSE spec. PR #15515 by @Zawwarsami16.
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026
FastAPI by Tiangolo

0.140.11

FastAPI fixes response_model_* params ignored for non-generator endpoints with Iterable return types.

Fixes

🐛 Fix response_model_* params ignored for non-generator endpoints with Iterable[..] return type. PR #15093 by @YuriiMotov.
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026
FastAPI by Tiangolo

0.140.10

FastAPI fixes nested Annotated sequence handling and improves regression checks and pytest exit code preservation.

Fixes

🐛 Fix handling sequences with nested Annotated types. PR #14874 by @YuriiMotov.

Internal

🐛 Accept any base test failure as regression. PR #16092 by @tiangolo.

🐛 Preserve pytest exit code in regression check. PR #16091 by @tiangolo.

✅ Test PR regressions against base code. PR #16090 by @tiangolo.
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026
FastAPI by Tiangolo

0.140.9

FastAPI fixes jsonable_encoder exclude_defaults propagation and updates a few internal dependencies.

Fixes

🐛 Fix exclude_defaults not propagated to dict keys and values in jsonable_encoder. PR #16043 by @MBGrao.

Internal

⬆ Bump gitpython from 3.1.50 to 3.1.54. PR #16047 by @dependabot[bot].

⬆ Bump pymdown-extensions from 10.21.3 to 11.0. PR #16048 by @dependabot[bot].

⬆ Bump pyasn1 from 0.6.3 to 0.6.4. PR #16045 by @dependabot[bot].
Original source
Jul 28, 2026
Date parsed from source:
Jul 28, 2026

First seen by Releasebot:
Jul 29, 2026
FastAPI by Tiangolo

0.140.8

FastAPI fixes stream item type loss when using include_router().

Fixes

🐛 Fix stream item type lost when using include_router(). PR #15077 by @alex-raw.
Original source
Jul 27, 2026
Date parsed from source:
Jul 27, 2026

First seen by Releasebot:
Jul 28, 2026
FastAPI by Tiangolo

0.140.7

FastAPI refactors OpenAPI dependency handling and adds dependency benchmarks while upgrading latest-changes.

Refactors

⚡️ Avoid flattening dependencies for OpenAPI. PR #16076 by @tiangolo.

Internal

⬆️ Upgrade latest-changes to 0.7.1. PR #16077 by @tiangolo.

👷 Add OpenAPI dependency benchmarks. PR #16075 by @tiangolo.
Original source
Jul 27, 2026
Date parsed from source:
Jul 27, 2026

First seen by Releasebot:
Jul 28, 2026
FastAPI by Tiangolo

0.140.6

FastAPI refactors request parameter dependencies to avoid flattening them for OpenAPI.

Refactors

⚡️ Avoid flattening dependencies for request parameters, mainly for OpenAPI. PR #16073 by @tiangolo.
Original source
Jul 27, 2026
Date parsed from source:
Jul 27, 2026

First seen by Releasebot:
Jul 28, 2026
FastAPI by Tiangolo

0.140.5

FastAPI refactors dependency handling to avoid flattening dependencies for body fields.

Refactors

⚡️ Avoid flattening dependencies for body fields. PR #16071 by @tiangolo.
Original source
Jul 27, 2026
Date parsed from source:
Jul 27, 2026

First seen by Releasebot:
Jul 28, 2026
FastAPI by Tiangolo

0.140.4

FastAPI refactors skip-unused-dependency repeat bookkeeping for cleaner dependency handling.

Refactors

⚡️ Skip unused dependency repeat bookkeeping. PR #16069 by @tiangolo.
Original source

Curated by the Releasebot team

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Tiangolo Release Notes

Tiangolo Products

0.142.2

Fixes

0.142.1

Fixes

0.142.0

Features

Refactors

Docs

Translations

Internal

0.141.1

Fixes

Docs

0.141.0

Features

Similar to Tiangolo with recent updates:

0.140.13

Fixes

Docs

0.140.12

Fixes

0.140.11

Fixes

0.140.10

Fixes

Internal

0.140.9

Fixes

Internal

0.140.8

Fixes

0.140.7

Refactors

Internal

0.140.6

Refactors

0.140.5

Refactors

0.140.4

Refactors

Curated by the Releasebot team