- Fixed $inspect.with untracking and added a safety check for unsafe mutations.
- Improved template handling to use fine‑grained updates when not in legacy mode.
- Relaxed unsafe state mutation constraints for SvelteSet, SvelteMap, SvelteDate, SvelteURL and SvelteURLSearchParams in derived stores.
svelte@5.34.8
Official Svelte changelog summary with source attribution, release tags, and community reactions.
Track this Svelte release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Verify the original release note
Every summary should remain traceable to the original changelog or release source.
Follow this in context
Turn this Svelte release note into a weekly digest for the tools you actually use.
Create digestMore Svelte changelog updates
Fixed multiple CSS handling bugs, including escape sequences, custom property values, and namespace preservation
Fix skip controlled each fast path when another batch is pending
Fixed onerror handling and added a functional reset for failed hydration boundaries.