svelte@5.56.10 v4.20.4
sveltejs/svelteAug 20, 2026 → Aug 20, 20260 days between releases
What's New
The newer release describes a different software product (FalkorDB) than the older release (Svelte), introducing graph serialization APIs and replica crash fixes.
New Features
- New public APIs for graph serialization and versioning
Improvements
- Optimized RDB decoding performance by rebuilding transpose matrices incrementally
- New public APIs for graph serialization
Bug Fixes
- Fixed SIGSEGV crash when effects reference non-existent nodes or edges
Upgrade Notes
The older release is Svelte while the newer release is FalkorDB; these are incompatible software products, so an upgrade is not possible without changing the entire technology stack.
The Two Releases
svelte@5.56.10
Aug 20, 2026· 2 months ago
A patch release focusing on fixing CSS selector parsing, server-side rendering of labeled statements, and improving the performance of async blocker analysis.
Full release notesv4.20.4
Aug 20, 2026· 2 months ago
This release addresses a critical crash in replica nodes caused by diverging effects, improves the speed of loading persisted graphs, and exposes new public APIs for external modules to handle graph serialization.
Full release notes