# What changed in rollup-plugin-istanbul

> 15 changes in rollup-plugin-istanbul 2 to 6 from its official release notes, upgrade guides and advisories: 10 breaking. Each one cited. Sources checked 2026-11-13. HTML: https://unstale.sh/npm/rollup-plugin-istanbul/

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

## rollup-plugin-istanbul 6

### Breaking changes

- Rollup 1 and 2 are no longer supported; Rollup 3 or 4 is required. (6.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v6.0.0)

### Tooling

- The package is now published to JSR under this package name. (6.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v6.0.0)
- TypeScript types are now shipped for both the ES module and CommonJS builds. (6.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v6.0.0)

## rollup-plugin-istanbul 5

### Breaking changes

- Support for Node.js 14 was dropped. (5.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v5.0.0)
- Added support for Rollup v4. (5.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v5.0.0)

## rollup-plugin-istanbul 4

### Breaking changes

- Support for Node.js 10 and 12 was dropped. (4.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v4.0.0)

### Fixes and other changes

- Coverage location handling was fixed. (4.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v4.0.0)

## rollup-plugin-istanbul 3

### Breaking changes

- The default for autoWrap is now true. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)
- The default for esModules is now true. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)
- Node.js 10 is now required. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)
- The default for preserveComments is now true. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)
- Rollup 1.20.0 is now the minimum supported version. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)

### Behavior and default changes

- The default for produceSourceMap is now true. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)

### Fixes and other changes

- Sourcemap support is fixed. (3.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v3.0.0)

## rollup-plugin-istanbul 2

### Breaking changes

- Switches from deprecated istanbul to the new instrumenter, istanbul-lib-instrument. (2.0.0) — [release notes](https://github.com/artberri/rollup-plugin-istanbul/releases/tag/v2.0.0)