npm / rollup-plugin-istanbul
rollup-plugin-istanbul
What changed in rollup-plugin-istanbul 2 to 6, from its official release notes, upgrade guides and advisories. Sources checked 2026-11-13.
10 breaking1 behavior and defaults2 tooling2 fixes and other
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initrollup-plugin-istanbul 63 changes
Breaking changes 1
Rollup 1 and 2 are no longer supported; Rollup 3 or 4 is required.
Tooling 2
The package is now published to JSR under this package name.
TypeScript types are now shipped for both the ES module and CommonJS builds.
rollup-plugin-istanbul 52 changes
Breaking changes 2
Support for Node.js 14 was dropped.
Added support for Rollup v4.
rollup-plugin-istanbul 42 changes
Breaking changes 1
Support for Node.js 10 and 12 was dropped.
Fixes and other changes 1
Coverage location handling was fixed.
rollup-plugin-istanbul 37 changes
Breaking changes 5
The default for autoWrap is now true.
The default for esModules is now true.
Node.js 10 is now required.
The default for preserveComments is now true.
Rollup 1.20.0 is now the minimum supported version.
Behavior and default changes 1
The default for produceSourceMap is now true.
Fixes and other changes 1
Sourcemap support is fixed.
rollup-plugin-istanbul 21 changes
Breaking changes 1
Switches from deprecated istanbul to the new instrumenter, istanbul-lib-instrument.