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Better dates & times for Python
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Release cadenceEvery 2 months
Last releaseOct 18, 2025
Open advisories0
Changelog quality98% curated
GitHub Releases + CHANGELOG, gaps for some releases
Release history SecurityYou're on
63 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionarrow 0.17 → 10.17.0 → 1.4.0Oct 18, 2025 BreakingBreaking2Platform5New19Changed7Fixed25Other18arrow 0.16 → 0.170.16.0 → 0.17.0Oct 6, 2020 Review neededDeprecated2New1Changed1Fixed3Other2arrow 0.15 → 0.160.15.8 → 0.16.0Aug 23, 2020 BreakingPlatform1New2arrow 0.14 → 0.150.14.7 → 0.15.8Jul 24, 2020 BreakingBreaking2Platform1Deprecated1New25Changed3Fixed13Other9arrow 0.13 → 0.140.13.2 → 0.14.7Sep 4, 2019 BreakingBreaking1Platform3Deprecated1New4Changed5Fixed7Other5arrow 0.12 → 0.130.12.1 → 0.13.2May 18, 2019 Unknownarrow 0.11 → 0.120.11.0 → 0.12.1Jan 19, 2018 Review neededNew1Changed1Fixed1arrow 0.10 → 0.110.10.0 → 0.11.0Nov 24, 2017 BreakingBreaking1New1Fixed1arrow 0.9 → 0.100.9.0 → 0.10.0Nov 30, 2016 SafeFixed3arrow 0.8 → 0.90.8.0 → 0.9.0Nov 27, 2016 SafeNew7Fixed5arrow 0.7 → 0.80.7.0 → 0.8.0Jun 15, 2016 Unknownarrow 0.6 → 0.70.6.0 → 0.7.0Oct 10, 2015 SafeNew4Fixed6Other1arrow 0.5 → 0.60.5.4 → 0.6.0Jul 10, 2015 Unknownarrow 0.4 → 0.50.4.6 → 0.5.4Feb 26, 2015 UnknownNew3Changed2Fixed5Other1arrow 0.3 → 0.40.3.5 → 0.4.6Jan 22, 2015 Unknownarrow 0.2 → 0.30.2.1 → 0.3.5Aug 30, 2013 BreakingBreaking3New9Changed1Fixed5arrow 0.1 → 0.20.1.6 → 0.2.1May 11, 2013 Unknown
VersionChannelDateChangesSecurity
1.4.0 StableOct 18, 2025New7Changed1Fixed6Other71.3.0 youStableSep 30, 2023Platform2Changed1Fixed2Other31.2.3 StableSep 3, 2022New1Fixed1Other11.2.2 StableJan 27, 2022New1Fixed2Other41.2.1 StableOct 24, 2021Breaking1Platform1New2Changed11.2.0 StableOct 1, 2021New2Fixed31.1.1 StableJun 24, 2021New1Changed2Fixed21.1.0 StableApr 27, 2021New3Fixed3Other11.0.3 StableMar 7, 2021Fixed2Other11.0.2 StableFeb 28, 2021Fixed11.0.1 StableFeb 27, 2021Fixed11.0.0 StableFeb 26, 2021Breaking1Platform2New2Changed2Fixed2Other10.17.0 StableOct 6, 2020Deprecated2New1Changed1Fixed3Other20.16.0 StableAug 23, 2020Platform1New20.15.8 StableJul 24, 2020Platform1Deprecated1New1Fixed1Other20.15.7 StableJun 19, 2020New3Changed1Fixed2Other10.15.6 StableMay 3, 2020New3Fixed1Other40.15.5 StableJan 3, 2020New8Fixed20.15.4 StableNov 3, 2019Fixed10.15.3 StableNov 2, 2019New5Fixed1Other2