rollup

4.57.1

Bug Fixes

• Fixed heap corruption on Windows during environment detection
• Dynamic imports called from try...catch now fully include their exports

4.57.0

2026-01-27

Features

• Add import attributes to all plugin hooks that did not provide them yet (#5700)
• Deprecate returning import attributes from load or transform hooks as that will no longer be supported with rollup 5 (#5700)

Pull Requests

• #5700: extend more hooks to include import attributes and add warnings (@TrickyP...

4.56.0

2026-01-22

Features

• Track object property inclusions of dynamic namespace members (#6230)

Bug Fixes

• Handle methods that access dynamically imported namespace members via this (#6230)

Pull Requests

• #6230: Refine namespace handling (@lukastaegert)

4.55.3

2026-01-21

Bug Fixes

• Fix JSX semicolon insert position in variable declarations (#6241)

Pull Requests

• #6241: Fix JSX semicolon insertion (@lukastaegert)

4.55.2

2026-01-19

Bug Fixes

• Sort manual chunks by execution order to reduce circular dependency issues (#6240)

Pull Requests

• #6234: chore(deps): pin cross-platform-actions/action action to 492b0c8 (@renovate[bot])
• #6235: chore(deps): update dependency globals to v17 (@renovate[bot],...

4.55.1

2026-01-05

Bug Fixes

• Fix artifact reference for OpenBSD (#6231)

Pull Requests

• #6231: Fix OpenBSD artifacts and ensure OIDC is working (@lukastaegert)

4.54.0

2025-12-20

Features

• Enable tree-shaking for Symbol.hasInstance, Symbol.dispose and Symbol.asyncDispose properties if unused (#6046)

Bug Fixes

• Ensure that well-known-Symbol-valued properties are not tree-shaken except in select cases (#6046)
• Ensure namespace properties are included when referenced only from a try-catch (#6216)

Pull Requests

• [#6046](https...

4.53.5

2025-12-16

Bug Fixes

• Fix wrong semicolon insertion position when using JSX (#6206)
• Generate spec-compliant sourcemaps when sources content is excluded (#6196)

Pull Requests

• #6196: fix: set sourcesContent to undefined instead of null when excluding sources content (@TrickyPi)
• [#6206](https://github.com/rollup/rollup/pull...

4.53.4

2025-12-15

Bug Fixes

• Ensure Symbol.dispose and Symbol.asyncDispose properties are never removed with (await) using declarations. (#6209)

Pull Requests

• #6185: chore(deps): update dependency @inquirer/prompts to v8 (@renovate[bot], @lukastaegert)
• #6186: fix(deps): lock fil...

4.53.3

2025-11-19

Bug Fixes

• Fix an error where too many modules where flagged for having an unused external import (#6182)
• Fix an error where an assignment was wrongly tree-shaken when mutating it (#6183)

Pull Requests

• #6171: Add test-install CI job to test packaging, installation and importing of rollup package (@antoninkriz, @...