npm
tslib
Runtime library for TypeScript helper functions
bundledependencyimportoptimizetypescripttypescript-helpers
github.com/Microsoft/tslibwww.typescriptlang.org/0BSDmicrosoft1es, typescript-bot, weswigham +4589M / week1.3k · 146 forks · 41 contributors
Release cadenceEvery 4 weeks
Last releaseOct 30, 2026
Open advisories0
Changelog quality100% curated
GitHub Releases
Release history SecurityYou're on
42 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionVersionChannelDateChangesSecurity
2.9.1 StableOct 30, 2026No changes listed2.8.1 youStableOct 31, 2024Changed1Fixed1Other12.8.0 StableOct 15, 2024New1Other12.7.0 StableAug 23, 2024Changed22.6.3 StableJun 4, 2024Changed12.6.2 StableAug 18, 2023No changes listed2.6.1 StableJul 24, 2023No changes listed2.6.0 StableJun 26, 2023No changes listed2.5.3 StableJun 2, 2023No changes listed2.5.2 StableMay 18, 2023No changes listed2.5.1 StableMay 17, 2023No changes listed2.5.0 StableJan 26, 2023No changes listed2.4.1 StableOct 31, 2022No changes listed2.4.0 StableApr 22, 2022No changes listed2.3.1 StableAug 11, 2021No changes listed2.3.0 StableJun 11, 2021No changes listed2.2.0 StableApr 5, 2021No changes listed2.1.0 StableJan 5, 2021No changes listed2.0.3 StableOct 9, 2020No changes listed2.0.2 StableOct 6, 2020No changes listed