PyPI
uvicorn
The lightning-fast ASGI server.
asgiasynciohttphttp-serverpython
github.com/Kludex/uvicornuvicorn.dev/BSD-3-ClauseTom Christie149M / week11k · 1.1k forks · 232 contributors
Release cadenceEvery 5 days
Last releaseSep 25, 2026
Open advisories0
Changelog quality96% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
151 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionuvicorn 0.53 → 0.540.53.0 → 0.54.0Sep 25, 2026 Review neededNew2Changed1uvicorn 0.52 → 0.530.52.4 → 0.53.0Sep 14, 2026 Review neededNew2Changed1Fixed2Other1uvicorn 0.51 → 0.520.51.0 → 0.52.4Aug 19, 2026 Review neededNew1Changed1Fixed7uvicorn 0.50 → 0.510.50.2 → 0.51.0Jul 8, 2026 Review neededChanged2uvicorn 0.49 → 0.500.49.0 → 0.50.2Jul 6, 2026 Review neededDeprecated1Changed7Fixed1Other1uvicorn 0.48 → 0.490.48.0 → 0.49.0Jun 3, 2026 Review neededChanged2uvicorn 0.47 → 0.480.47.0 → 0.48.0May 24, 2026 Review neededChanged1Fixed1uvicorn 0.46 → 0.470.46.0 → 0.47.0May 14, 2026 Review neededNew1Changed1Fixed1uvicorn 0.45 → 0.460.45.0 → 0.46.0Apr 23, 2026 Review neededNew2Changed1uvicorn 0.44 → 0.450.44.0 → 0.45.0Apr 21, 2026 Review neededNew2Changed3Fixed2uvicorn 0.43 → 0.440.43.0 → 0.44.0Apr 6, 2026 SafeNew1uvicorn 0.42 → 0.430.42.0 → 0.43.0Apr 3, 2026 Review neededChanged2Other1uvicorn 0.41 → 0.420.41.0 → 0.42.0Mar 16, 2026 Review neededChanged1Fixed2uvicorn 0.40 → 0.410.40.0 → 0.41.0Feb 16, 2026 Review neededNew2Changed1Fixed3uvicorn 0.39 → 0.400.39.0 → 0.40.0Dec 21, 2025 BreakingPlatform1uvicorn 0.38 → 0.390.38.0 → 0.39.0Dec 21, 2025 SafeFixed1Other1uvicorn 0.37 → 0.380.37.0 → 0.38.0Oct 18, 2025 SafeNew1uvicorn 0.36 → 0.370.36.1 → 0.37.0Sep 23, 2025 SafeNew2uvicorn 0.35 → 0.360.35.0 → 0.36.1Sep 23, 2025 BreakingBreaking1New2uvicorn 0.34 → 0.350.34.3 → 0.35.0Jun 28, 2025 Review neededNew1Changed1uvicorn 0.33 → 0.340.33.0 → 0.34.3Jun 1, 2025 BreakingPlatform1Deprecated1New1Other4uvicorn 0.32 → 0.330.32.1 → 0.33.0Dec 14, 2024 BreakingBreaking1uvicorn 0.31 → 0.320.31.1 → 0.32.1Nov 20, 2024 BreakingBreaking1New2Other1uvicorn 0.30 → 0.310.30.6 → 0.31.1Oct 9, 2024 SafeNew3Fixed3uvicorn 0.29 → 0.300.29.0 → 0.30.6Aug 13, 2024 Review neededDeprecated1New3Fixed9uvicorn 0.28 → 0.290.28.1 → 0.29.0Mar 20, 2024 SafeNew1uvicorn 0.27 → 0.280.27.1 → 0.28.1Mar 19, 2024 SafeNew1Fixed3uvicorn 0.26 → 0.270.26.0 → 0.27.1Feb 10, 2024 UnknownFixed1uvicorn 0.25 → 0.260.25.0 → 0.26.0Jan 16, 2024 Unknownuvicorn 0.24 → 0.250.24.0.post1 → 0.25.0Dec 20, 2023 Unknownuvicorn 0.23 → 0.240.23.2 → 0.24.0.post1Nov 6, 2023 Unknownuvicorn 0.22 → 0.230.22.0 → 0.23.2Jul 31, 2023 Unknownuvicorn 0.21 → 0.220.21.1 → 0.22.0Apr 28, 2023 Unknownuvicorn 0.20 → 0.210.20.0 → 0.21.1Mar 16, 2023 Unknownuvicorn 0.19 → 0.200.19.0 → 0.20.0Nov 20, 2022 Unknownuvicorn 0.18 → 0.190.18.3 → 0.19.0Oct 19, 2022 BreakingBreaking2Platform1New2Changed1Fixed4uvicorn 0.17 → 0.180.17.6 → 0.18.3Aug 24, 2022 Unknownuvicorn 0.16 → 0.170.16.0 → 0.17.6Mar 11, 2022 Unknownuvicorn 0.15 → 0.160.15.0 → 0.16.0Dec 8, 2021 Review neededNew1Changed6Fixed7uvicorn 0.14 → 0.150.14.0 → 0.15.0Aug 13, 2021 Unknownuvicorn 0.13 → 0.140.13.4 → 0.14.0Jun 1, 2021 Unknownuvicorn 0.12 → 0.130.12.3 → 0.13.4Feb 20, 2021 Unknownuvicorn 0.11 → 0.120.11.8 → 0.12.3Nov 22, 2020 Unknownuvicorn 0.10 → 0.110.10.9 → 0.11.8Jul 31, 2020 Unknownuvicorn 0.9 → 0.100.9.1 → 0.10.9Dec 19, 2019 Unknownuvicorn 0.8 → 0.90.8.6 → 0.9.1Oct 21, 2019 Unknownuvicorn 0.7 → 0.80.7.3 → 0.8.6Aug 1, 2019 Unknownuvicorn 0.6 → 0.70.6.1 → 0.7.3Jun 18, 2019 Unknownuvicorn 0.5 → 0.60.5.2 → 0.6.1Mar 14, 2019 Unknownuvicorn 0.4 → 0.50.4.6 → 0.5.2Mar 11, 2019 Unknownuvicorn 0.3 → 0.40.3.32 → 0.4.6Feb 25, 2019 Unknownuvicorn 0.2 → 0.30.2.22 → 0.3.32Jan 23, 2019 Unknownuvicorn 0.1 → 0.20.1.1 → 0.2.22Jul 27, 2018 Unknownuvicorn 0.0 → 0.10.0.15 → 0.1.1Apr 20, 2018 Unknown
VersionChannelDateChangesSecurity
0.54.0 StableSep 25, 2026New2Changed10.53.0 youStableSep 14, 2026New2Changed1Fixed2Other10.52.4 StableAug 19, 2026Fixed10.52.3 StableAug 13, 2026Changed10.52.2 StableAug 13, 2026Fixed10.52.1 StableAug 1, 2026Fixed40.52.0 StableJul 29, 2026New1Fixed10.51.0 StableJul 8, 2026Changed20.50.2 StableJul 6, 2026Changed10.50.1 StableJul 6, 2026Fixed10.50.0 StableJul 4, 2026Deprecated1Changed6Other10.49.0 StableJun 3, 2026Changed20.48.0 StableMay 24, 2026Changed1Fixed10.47.0 StableMay 14, 2026New1Changed1Fixed10.46.0 StableApr 23, 2026New2Changed10.45.0 StableApr 21, 2026New2Changed3Fixed20.44.0 StableApr 6, 2026New10.43.0 StableApr 3, 2026Changed2Other10.42.0 StableMar 16, 2026Changed1Fixed20.41.0 StableFeb 16, 2026New2Changed1Fixed3