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base repository: web-platform-dx/baseline-browser-mapping
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base: v2.10.44
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head repository: web-platform-dx/baseline-browser-mapping
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compare: v2.11.0
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  • 1 commit
  • 27 files changed
  • 2 contributors

Commits on Jul 21, 2026

  1. feat: add getTimeline() and refactor data compression (#137) 

    This PR does three things:

* feat: Adds a new `getTimeline()` method for getting the series of minimum browser changes, either grouped by date or by browser.
* refactor: Substantial refactoring of the data compression process that replaces the full list of browsers from `@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!
* refactor: Some common functions have been moved to a `util.ts` module for use in other scripts. 
* fix: Removes `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 

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Co-authored-by: swwind <i@sww.moe>
    @tonypconway @swwind
    tonypconway and swwind authored Jul 21, 2026
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