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[Feature Request][DevTools]: EPIC

p1: important

scope: devtools

Status: Open.

#4145 In rolldown/rolldown;

· antfu opened on Apr 17, 2025

[Feature Request]: support proposal-import-bytes

p2: significant / minor bug

scope: standards

Status: Open.

Feature

#6410 In rolldown/rolldown;

· IWANABETHATGUY opened on Oct 4, 2025

[Feature Request]: respect moduleSideEffects after cross-module optimizations

p2: significant / minor bug

scope: treeshaking

Status: Open.

Feature

#8195 In rolldown/rolldown;

· sapphi-red opened on Feb 4, 2026

Polish external symbol merging.

p2: significant / minor bug

scope: output size

Status: Open.

Task

#3427 In rolldown/rolldown;

· IWANABETHATGUY opened on Jan 26, 2025

Watch mode issue collection

tracking

Status: Open.

Task

#6482 In rolldown/rolldown;

· hyf0 opened on Oct 11, 2025

empty chunk generated and imported when using advancedChunks

p2: significant / minor bug

scope: chunking

Status: Open.

Bug

#6677 In rolldown/rolldown;

· hyf0 opened on Oct 24, 2025

[Bug]: syntaxes allowed in non-strict mode are rejected even in CJS files

p2: significant / minor bug

scope: correctness

Status: Open.

Bug

#7009 In rolldown/rolldown;

· sapphi-red opened on Nov 14, 2025

Next step for manual code splitting(mcs)

tracking

Status: Open.

#7114 In rolldown/rolldown;

· hyf0 opened on Nov 18, 2025

[AdvancedChunks] maxSize should re-split the group into smaller groups based on files' relevance instead of pure file size

p1: important

scope: chunking

Status: Open.

#7116 In rolldown/rolldown;

· hyf0 opened on Nov 18, 2025

Infra: tracing log governance and cleanup

p3: nice to have / edge case

scope: infra

Status: Open.

Task

#7182 In rolldown/rolldown;

· hyf0 opened on Nov 21, 2025

Document: Add some advanced chunks recipes

documentationImprovements or additions to documentationImprovements or additions to documentation

Status: Open.

Task

#7309 In rolldown/rolldown;

· sapphi-red opened on Dec 2, 2025

Improve test-dev-server and browser-based test infra

scope: infra

scope: tests

Status: Open.

Task

#7350 In rolldown/rolldown;

· hyf0 opened on Dec 5, 2025

Feature request: a sane strategy/documentation for advancedChunks

scope: chunking

Status: Open.

Feature

#7473 In rolldown/rolldown;

· sapphi-red opened on Dec 12, 2025

[Feature Request]: Improve native magic string by skipping intermediate sourcemap generation

p2: significant / minor bug

scope: perf

Status: Open.

Feature

#7779 In rolldown/rolldown;

· sapphi-red opened on Jan 7, 2026

Stabilize native magic string feature

tracking

Status: Open.

#7780 In rolldown/rolldown;

· sapphi-red opened on Jan 7, 2026

[Panic]: when using bundledDev in stackblitz

p3: nice to have / edge case

scope: devRelated to dev modeRelated to dev mode

Status: Open.

Bug

#8411 In rolldown/rolldown;

· literalpie opened on Feb 21, 2026

[Panic]: Access tokio runtime failed in spawn crash on StackBlitz when using watch mode

p2: significant / minor bug

scope: wasi

scope: watch

Status: Open.

Bug

#8747 In rolldown/rolldown;

· sapphi-red opened on Mar 17, 2026

Tracking: dev mode

scope: devRelated to dev modeRelated to dev mode

tracking

Status: Open.

#8763 In rolldown/rolldown;

· sapphi-red opened on Mar 18, 2026

[Task]: stabilize lazy barrel optimization

tracking

Status: Open.

Task

#8936 In rolldown/rolldown;

· sapphi-red opened on Mar 27, 2026

The Value is non of these types error thrown for invalid return value in function options is difficult to figure the reason

p2: significant / minor bug

scope: dx

Status: Open.

Feature

#9005 In rolldown/rolldown;

· sapphi-red opened on Apr 6, 2026

[Bug]: export syntax breaks strictExecutionOrder and code splitting

p2: significant / minor bug

scope: correctness

Status: Open.

Bug

#9039 In rolldown/rolldown;

· russill-stripe opened on Apr 8, 2026

[Bug]: sanitizeFileName is ignored for JS chunks when preserveModules: true with object-form entry

contrib: medium

p2: significant / minor bug

Status: Open.

Bug

#8761 In rolldown/rolldown;

· ef81sp opened on Mar 18, 2026

[Feature Request]: skip barrel files when all imports in the barrel files are marked as side effect free

p1: important

scope: chunking

Status: Open.

Feature

#8920 In rolldown/rolldown;

· sapphi-red opened on Mar 26, 2026

[Feature Request][DevTools]: Extended asset type support

p1: important

scope: devtools

Status: Open.

Feature

#9400 In rolldown/rolldown;

· webfansplz opened on May 15, 2026

getCombinedSourcemap should work even if experimental.nativeMagicString is enabled

Status: Open.

Task

#9459 In rolldown/rolldown;

· sapphi-red opened on May 19, 2026