svelte@5.57.1 v1.16.12
sveltejs/svelteSep 18, 2026 → Sep 19, 20261 day between releases
What's New
Newer release notes are for a different repository (Agent Deck) than the older release (Svelte).
New Features
- Add --hint/--tag/--ticket CLI flags for session annotation
- Add durable session hints, tags, and harness links in state.db
Bug Fixes
- Fix letter hotkeys for non-Latin keyboard layouts
- Fix auto-update zombie holding markers
- Fix dead-pipe reading before reviver acts
- Fix auto-update restart
- Fix explicit [hotkeys] bindings winning over derived layout twins
Upgrade Notes
The newer release is for a different project (Agent Deck) and cannot be upgraded from the older Svelte release.
The Two Releases
svelte@5.57.1
Sep 18, 2026· 1 month ago
This patch release focuses on stabilizing the compiler and runtime, primarily addressing issues in server-side rendering (SSR), event handling cleanup, and parser performance. Key improvements include optimizations to reduce garbage collection, fixes for reactive state proxy ownership, and enhancements to CSS scoping.
Full release notesv1.16.12
Sep 19, 2026· 1 month ago
A maintenance release adding session annotations and fixing hotkey support for non-Latin keyboard layouts.
Full release notes