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npm · #223 most downloaded on npm
A library for obtaining browser versions with their maximum supported Baseline feature set and Widely Available status.
Last release 3 days ago
01 Oct 2026
Ships on a steady schedule
a new release about every 1 weeks
Some releases are documented
notes for 20 of the last 60 stable releases
3 versions withdrawn
withdrawn after publishing
2 years old
178 releases · first in 2024
Patch to 2.11.27 because browser or feature data changed
Patch to 2.11.27 because browser or feature data changed
Patch to 2.11.26 because browser or feature data changed
Patch to 2.11.26 because browser or feature data changed
Patch to 2.11.25 because browser or feature data changed
One column per month.
Patch to 2.11.25 because browser or feature data changed
Patch to 2.11.24 because browser or feature data changed
Patch to 2.11.24 because browser or feature data changed
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Patch to 2.11.22 because browser or feature data changed
Patch to 2.11.21 because browser or feature data changed
Patch to 2.11.21 because browser or feature data changed
Patch to 2.11.20 because browser or feature data changed
Patch to 2.11.20 because browser or feature data changed
Patch to 2.11.19 because browser or feature data changed
Patch to 2.11.19 because browser or feature data changed
Patch to 2.11.18 because browser or feature data changed
Patch to 2.11.18 because browser or feature data changed
Patch to 2.11.17 because browser or feature data changed
Patch to 2.11.17 because browser or feature data changed
Patch to 2.11.16 because browser or feature data changed
Patch to 2.11.16 because browser or feature data changed
Patch to 2.11.15 because browser or feature data changed
Patch to 2.11.15 because browser or feature data changed
Patch to 2.11.14 because browser or feature data changed
Patch to 2.11.14 because browser or feature data changed
Patch to 2.11.13 because browser or feature data changed
Patch to 2.11.13 because browser or feature data changed
Patch to 2.11.12 because browser or feature data changed
Patch to 2.11.12 because browser or feature data changed
Patch to 2.11.11 because browser or feature data changed
Patch to 2.11.11 because browser or feature data changed
Patch to 2.11.10 because browser or feature data changed
Patch to 2.11.10 because browser or feature data changed
Patch to 2.11.9 because browser or feature data changed
Patch to 2.11.9 because browser or feature data changed
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Thanks to @bnbdr for flagging this as vulnerability CVE-2026-45819 .
getTimeline() method for getting the series of minimum browser changes, either grouped by date or by browser.@mdn/browser-compat-data and downstream-browsers.json and features from web-features (in their very pared down form) with a change-list timeline that reflects which versions supported Baseline (newly available) on a given date. Thanks to @swwind for the idea!util.ts module for use in other scripts.process.exit() calls when unsupported option combinations are passed to getCompatibleVersions() and getAllVersions() in favour of throwing an Error. There is a small security risk with process.exit() calls that sites accepting unsanitised inputs could be the subject of attacks. Unsupported config options now throw and Error which should allow for more graceful handling. Thanks to @bnbdr for flagging this as vulnerability CVE-2026-45819 .Fixes #134
Full Changelog: https://github.com/web-platform-dx/baseline-browser-mapping/compare/v2.10.44...v2.11.0
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