# What changed in baseline-browser-mapping

> 10 changes in baseline-browser-mapping 2 from its official release notes, upgrade guides and advisories: 2 breaking, 3 new APIs and options. Each one cited. Sources checked 2026-11-14. HTML: https://unstale.sh/npm/baseline-browser-mapping/

To see which of these apply to a repository, run `npx @unstale/cli init` in it.

## baseline-browser-mapping 2

### Breaking changes

- Unsupported option combinations now throw an Error instead of calling process.exit(), allowing more graceful handling. (2.11.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.11.0), [security advisory](https://github.com/advisories/GHSA-W5VR-8V7Q-W6RV)
- The main script no longer calls process.loadEnfFile(). (2.9.3) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.3)

### New APIs and options

- Adds a method to get the series of minimum browser changes, grouped by date or by browser. (2.11.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.11.0)
- Adds an environment variable to suppress data staleness warnings. (2.9.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.0)
- Adds a boolean option to suppress data staleness warnings. (2.9.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.0)

### Behavior and default changes

- Node 6 is supported; package.json specifies support for Node versions >=6.0.0, and the CLI avoids APIs unavailable before Node 18. (2.10.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.10.0)
- Warnings are shown only when getCompatibleVersions() or getAllVersions() is called, rather than whenever the module is loaded. (2.9.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.0)
- Warnings are limited to cases where feature cutoff data is within the last two months and module data is more than two months old. (2.9.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.0)

### Fixes and other changes

- Fixes a browser support bug. (2.9.2) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.2)
- The package now respects this existing environment variable to suppress data staleness warnings. (2.9.0) — [release notes](https://github.com/web-platform-dx/baseline-browser-mapping/releases/tag/v2.9.0)