FastAPI / update detail

0.142.3

Official FastAPI changelog summary with source attribution, release tags, and community reactions.

Track this FastAPI release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.

FastAPI·Oct 7, 2026, 07:21 PMFixAI-assisted summary

0.142.3

Summary

Fix cache of OpenTelemetry tracers to preserve warning deduplication.
Update documentation: remove HTML title from newsletter, embed signup form, and improve async handling with Asyncer.
Refresh translations for multiple languages, update sponsors, and bump several dependencies.

bugfixdocsminorfeaturesource healthy

Official source Last checked Oct 19, 2026, 2:00 PM

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FastAPI / update detail

0.142.3

Official FastAPI changelog summary with source attribution, release tags, and community reactions.

Track this FastAPI release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.

FastAPI·Oct 7, 2026, 07:21 PMFixAI-assisted summary

0.142.3

Summary

Fix cache of OpenTelemetry tracers to preserve warning deduplication.
Update documentation: remove HTML title from newsletter, embed signup form, and improve async handling with Asyncer.
Refresh translations for multiple languages, update sponsors, and bump several dependencies.

bugfixdocsminorfeaturesource healthy

Official source Last checked Oct 19, 2026, 2:00 PM

Loading follow options…

keep exploring

Continue with FastAPI

Compare this release with the product timeline and keep the tools you use in one place.

Product timeline All FastAPI updates

official source

Verify the original release note

Every summary should remain traceable to the original changelog or release source.

AI-assisted summarysource healthyLast checked Oct 19, 2026, 2:00 PM

Official changelog

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Discussion · 0 comments

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