4.65.1

2026-10-26

Bug Fixes

• Ensure tree-shaking also respect Symbol.dispose for async disposal (#6556)

Pull Requests

• #6556: Fix tree-shaking of disposable resources (@TrickyPi, @lukastaegert)
• #6595: Update dtolnay/rust-toolchain digest to b725eda (@renovate[bot])
• #6596: Update minor/patch updates (@renovate[bot])
• #6598: Lock file maintenance (@renovate[bot], @lukastaegert)

4.65.0

2026-10-22

Features

• Support synthetic named exports in namespaces when preserving modules (#6589)

Bug Fixes

• Fix a situation where unaligned sourcemaps resulted in a wrong segment (#6591)
• Forward startup errors on native module load when starting rollup (#6592)

Pull Requests

• #6589: Merge synthetic named exports into static namespaces when preserving modules (@b84330808, @lukastaegert)
• #6590: Stabilize flaky watch test "treats filenames literally, not as globs" (@lukastaegert)
• #6591: Use the last sourcemap segment for log locations after its start (@Dev-next-gen)
• #6592: Preserve native module load errors (@shuaiyafei, @lukastaegert)
• #6593: Close bundles in the Gulp examples (@shuaiyafei, @lukastaegert)
• #6594: Improve review instructions and resolve audit (@lukastaegert)

4.64.12

2026-10-20

Bug Fixes

• Allow generating logs from transform hooks at position 0 (#6587)
• Properly handle global or sticky regular expressions for file names (#6588)

Pull Requests

• #6587: Fix transform diagnostics at position zero (@shuaiyafei)
• #6588: Match stateful external regular expressions consistently (@shuaiyafei)

4.64.10

2026-10-18

Bug Fixes

• Avoid breaking lazy loading when a dynamic import only contains reexports from a manual chunk (#6583)
• Ensure HTML entities in JSX are properly decoded in the output (#6584)

Pull Requests

• #6583: Track manual chunk dependencies when merging small chunks (@ybai08, @lukastaegert)
• #6584: Use decoded values for JSX string attributes (@luantaraschi)

4.64.9

2026-10-17

Bug Fixes

• Ensure export live-bindings are properly maintained for aliased exports (#6576)
• Retain typed array constructor calls if the argument has iteration side effects (#6582)

Pull Requests

• #6576: Fix live bindings for aliased reassigned exports (@oxura, @lukastaegert)
• #6582: Retain typed array constructors that iterate their argument (@joshuablac, @lukastaegert)

4.64.8

2026-10-17

Bug Fixes

• Ensure chunk hashes change when sourcemap comments change (#6509)
• Resolve some relative import resolution edge cases (#6522)

Pull Requests

• #6509: fix: include sourcemap comments in chunk hashes (@snoopuppy582, @wangxpych, @lukastaegert)
• #6522: fix(browser): match node's join and relative for "." and ".." segments (@luantaraschi, @lukastaegert)
• #6577: Update dtolnay/rust-toolchain digest to 686976e (@renovate[bot])
• #6578: Update minor/patch updates (@renovate[bot])
• #6579: Update swc monorepo (major) (@renovate[bot], @lukastaegert)
• #6580: Lock file maintenance (@renovate[bot], @lukastaegert)
• #6581: Update dependency eslint-plugin-unicorn to v78 (@renovate[bot])

4.64.7

2026-10-15

Bug Fixes

• Fix an issue where watching not-yet-created files from plugins did not work if several shared a directory (#6575)

Pull Requests

• #6575: Report creation of missing watch files sharing a directory on Linux (@lukastaegert)

4.64.6

2026-10-13

Bug Fixes

• Do not tree-shake side effects in class instance fields (#6551)
• Extend top-level-await detection to handle asynchronous for...of loops and async disposal (#6563)

Pull Requests

• #6551: Retain instance field initializers with side effects when instantiating a class (@SulimanAbdulrazzaq, @lukastaegert)
• #6563: Recognize top-level asynchronous loops and disposal (@TrickyPi)
• #6570: Lock file maintenance (@renovate[bot])
• #6571: Align lock file maintenance with other updates (@lukastaegert)
• #6573: Make addWatchFile watch test robust against watcher start-up timing (@lukastaegert)

4.64.5

2026-10-10

Bug Fixes

• Prevent cycles when using indirect top-level await for dynamic imports (#6516)

Pull Requests

• #6516: fix: prevent cycles for indirectly awaited dynamic imports (@ryanchou1994, @lukastaegert)

4.64.4

2026-10-10

Bug Fixes

• Support the Rollup WASM build on big-endian hosts (#6559)

Pull Requests

• #6559: fix: read the AST buffer correctly on big-endian hosts (@pkubaj, @lukastaegert)
• #6566: Update dtolnay/rust-toolchain digest to 89b1218 (@renovate[bot], @lukastaegert)
• #6567: Update minor/patch updates (@renovate[bot])
• #6568: Update dependency eslint-plugin-unicorn to v77 (@renovate[bot], @lukastaegert)
• #6569: Improve PR testing instructions comments (@lukastaegert)