Cargo
itertools
Extra iterator adaptors, iterator methods, free functions, and macros.
iteratorsrust
Release cadenceEvery 6 months
Last releaseJun 16, 2026
Open advisories0
Changelog quality79% curated
CHANGELOG, gaps for some releases
Release history SecurityYou're on
125 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionitertools 0.14 → 0.150.14.0 → 0.15.0Jun 16, 2026 BreakingBreaking2New2Changed10Other2itertools 0.13 → 0.140.13.0 → 0.14.0Dec 31, 2024 BreakingBreaking1Platform1New5Changed9Other5itertools 0.12 → 0.130.12.1 → 0.13.0May 16, 2024 BreakingBreaking6New5Changed21Other2itertools 0.11 → 0.120.11.0 → 0.12.1Jan 29, 2024 BreakingBreaking2New17Changed35Other14itertools 0.10 → 0.110.10.5 → 0.11.0Jun 22, 2023 BreakingBreaking3New6Changed2Other4itertools 0.9 → 0.100.9.0 → 0.10.5Sep 20, 2022 BreakingPlatform1Deprecated4New33Changed2Other5itertools 0.8 → 0.90.8.2 → 0.9.0Mar 7, 2020 BreakingPlatform1New3Changed4Fixed2itertools 0.7 → 0.80.7.11 → 0.8.2Nov 23, 2019 BreakingBreaking3Platform1Deprecated4New7Changed4Other1itertools 0.6 → 0.70.6.5 → 0.7.11Nov 24, 2018 UnknownNew2Changed2Other1itertools 0.5 → 0.60.5.10 → 0.6.5Sep 29, 2017 Unknownitertools 0.4 → 0.50.4.19 → 0.5.10Apr 2, 2017 Unknownitertools 0.3 → 0.40.3.25 → 0.4.19Sep 15, 2016 BreakingBreaking10Platform1Deprecated2New19Changed7Fixed4itertools 0.2 → 0.30.2.9 → 0.3.25Aug 17, 2015 BreakingBreaking1Deprecated6New18Changed3Fixed2Other1itertools 0.1 → 0.20.1.10 → 0.2.9Apr 22, 2015 Unknownitertools 0.0 → 0.10.0.20 → 0.1.10Mar 25, 2015 Unknown
VersionChannelDateChangesSecurity
0.15.0 StableJun 16, 2026Breaking2New2Changed10Other20.14.0 youStableDec 31, 2024Breaking1Platform1New5Changed9Other50.13.0 StableMay 16, 2024Breaking6New5Changed21Other20.12.1 StableJan 29, 2024New7Changed16Other60.12.0 StableNov 14, 2023Breaking2New10Changed19Other80.11.0 StableJun 22, 2023Breaking3New6Changed2Other40.10.5 StableSep 20, 2022Other10.10.4 StableSep 13, 2022New2Other30.10.3 StableDec 6, 2021No changes listed0.10.1 StableJun 9, 2021New120.10.0 StableDec 26, 2020Platform1Deprecated4New19Changed2Other10.9.0 StableMar 7, 2020Platform1New3Changed4Fixed20.8.2 StableNov 23, 2019Changed10.8.1 StableOct 27, 2019New6Changed30.8.0 StableDec 9, 2018Breaking3Platform1Deprecated4New1Other10.7.11 StableNov 24, 2018New10.7.10 StableNov 24, 2018No changes listed0.7.9 StableNov 17, 2018Changed1Other10.7.8 StableMar 23, 2018New1Changed10.7.7 StableMar 4, 2018No changes listed