- Fixed accessibility role fallback logic for a11y checks.
- Ensured state sources are created for property checks during component initialization.
- Optimized hydration by skipping redundant attribute writes and fixing devalue link errors.
Official Svelte changelog summary with source attribution, release tags and upgrade verdicts.
Track this Svelte release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Wait — 5.57.1 is the safer choice for now.
Published 23 h ago; most regressions surface within 72 h.
See the evidence →Compare this release with the product timeline and keep the tools you use in one place.
Every summary should remain traceable to the original changelog or release source.
Already following Svelte? Add related tools without starting a new digest.
Add more toolsDiscussionUpgraded to 5.57.3? Share what broke or what needed a workaround.