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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 6 days ago
24 Sep 2026
Ships on a steady schedule
a new release about every 1 weeks
Some releases are documented
notes for 19 of the last 60 stable releases
3 versions withdrawn
withdrawn after publishing
2 years old
177 releases · first in 2024
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Introduces support for Node 6 by refactoring all Object.entries and Object.values instances and lowering ES target in Rollup to es2015.
Object.entries and Object.values instances and lowering ES target in Rollup to es2015.parseArgs which is not supported by versions of Node prior to 18, changes import to require and changes Rollup export to cjs to allow execution on older versions of Node.legacy-test.js file that allows basic testing on older versions of Node where current versions of Jasmine and ESLint are not supported.Full Changelog: https://github.com/web-platform-dx/baseline-browser-mapping/compare/v2.9.24...v2.10.0
One column per month.
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Remove process.loadEnfFile() from main script by @tonypconway in https://github.com/web-platform-dx/baseline-browser-mapping/pull/112
Full Changelog: https://github.com/web-platform-dx/baseline-browser-mapping/compare/v2.9.2...v2.9.3
Fix browser support bug by @tonypconway in https://github.com/web-platform-dx/baseline-browser-mapping/pull/111 Full Changelog: https://github.com/web
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This version introduces a number of changes to data staleness warnings in response to #105 , #107 and #109
This version introduces a number of changes to data staleness warnings in response to #105 , #107 and #109
getCompatibleVersions() or getAllVersions() functions are called - previously they were shown whenever the module was loaded, which meant many browserslist consumers were seeing the warning despite not targeting Baseline, especially those who were consuming browserslist in a pre-compiled format via next.js.widelyAvailableOnDate: today + >2 years and 4 months or newly available in a browserslist query.options objects and environment variables:
suppressWarnings boolean to the getCompatibleVersions() and getAllVersions()BROWSERSLIST_IGNORE_OLD_DATA environment variable.BASELINE_BROWSER_MAPPING_IGNORE_OLD_DATA environment variable.Nothing published for this version
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baseline-browser-mapping is now a dependency of browserslist. The use of spread syntax and optional chaining in the source code caused build problems
baseline-browser-mapping is now a dependency of browserslist. The use of spread syntax and optional chaining in the source code caused build problems in older versions of Node.js (spread syntax in <8.3.0 and optional chaining in 14.0.0), so the build targets for baseline-browser-mapping have been changed to ES2017 to ensure compatibility.main in package.json to the CommonJS export, which should only be used in older versions of node. Any version of node using that supports ESM build should use the default location(s) in the exports property.A big thank you to @BrightTan for identifying the issue in https://github.com/browserslist/browserslist/issues/904 !
Full Changelog: https://github.com/web-platform-dx/baseline-browser-mapping/compare/v2.8.3...v2.8.4
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