# What changed in @jridgewell/sourcemap-codec

> 2 changes in @jridgewell/sourcemap-codec 1 from its official release notes, upgrade guides and advisories: 2 new APIs and options. Each one cited. Sources checked 2026-10-22. HTML: https://unstale.sh/npm/@jridgewell/sourcemap-codec/

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

## @jridgewell/sourcemap-codec 1

### New APIs and options

- Adds an API for decoding range mappings. (1.6.0) — [release notes](https://github.com/jridgewell/sourcemaps/blob/b7600158f4de012d246b7834a73c7c2190e75136/packages/sourcemap-codec/CHANGELOG.md#160---2026-08-27)
- Adds an API for encoding range mappings. (1.6.0) — [release notes](https://github.com/jridgewell/sourcemaps/blob/b7600158f4de012d246b7834a73c7c2190e75136/packages/sourcemap-codec/CHANGELOG.md#160---2026-08-27)