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built_collection
Immutable collections based on the SDK collections. Each SDK collection class is split into a new immutable collection class and a corresponding mutable builder class.
dartdart-build-system
Release cadenceEvery 3 months
Last releaseOct 26, 2026
Open advisories0
Changelog quality100% curated
CHANGELOG + GitHub Releases
Release history SecurityYou're on
49 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionbuilt_collection 5 → 65.1.2 → 6.0.0Oct 26, 2026 Unknownbuilt_collection 4 → 54.3.2 → 5.1.2Sep 28, 2026 BreakingPlatform1Fixed1Other1built_collection 3 → 43.1.3 → 4.3.2Jan 1, 2020 Unknownbuilt_collection 2 → 32.1.3 → 3.1.3Jul 23, 2018 Unknownbuilt_collection 1 → 21.6.2 → 2.1.3Jan 8, 2018 Review neededNew2Changed2Fixed1built_collection 0.4 → 10.4.0 → 1.6.2Nov 16, 2017 Unknownbuilt_collection 0.3 → 0.40.3.1 → 0.4.0Jun 12, 2015 Unknownbuilt_collection 0.2 → 0.30.2.0 → 0.3.1May 15, 2015 Unknownbuilt_collection 0.1 → 0.20.1.1 → 0.2.0May 14, 2015 Unknownbuilt_collection 0.0 → 0.10.0.1 → 0.1.1Apr 19, 2015 Unknown
VersionChannelDateChangesSecurity
6.0.0 StableOct 26, 2026No changes listed5.1.2 youStableSep 28, 2026Platform1Fixed1Other15.1.1 StableSep 3, 2021No changes listed5.1.0 StableJun 11, 2021No changes listed5.0.0 StableFeb 9, 2021No changes listed5.0.0-nullsafety.0 DevNov 17, 2020No changes listed4.3.2 StableJan 1, 2020No changes listed4.3.1 StableDec 31, 2019No changes listed4.3.0 StableNov 15, 2019No changes listed4.2.2 StableMay 12, 2019No changes listed4.2.1 StableMay 6, 2019No changes listed4.2.0 StableApr 2, 2019No changes listed4.1.0 StableDec 3, 2018No changes listed4.0.0 StableAug 20, 2018No changes listed3.1.3 StableJul 23, 2018No changes listed3.1.2 StableJul 23, 2018No changes listed3.1.1 StableMar 26, 2018No changes listed3.0.5 StableFeb 18, 2018No changes listed3.0.4 StableJan 31, 2018No changes listed3.0.3 StableJan 29, 2018No changes listed