v3.0.10 svelte@5.57.1

low risk

boratanrikulu/gecitSep 16, 2026 → Sep 18, 20262 days between releases

What's New

Newer release adds SSR fixes and parser performance improvements vs older AI and vector database features.

New Features

  • Deferred event listener cleanup
  • Global CSS preservation in components
  • SSR garbage collection improvement
  • WAS_MARKED flag removal

Improvements

  • Parser performance speedup
  • Avoid regex matching in parser

Bug Fixes

  • Cancel deferred event listeners during cleanup
  • Preserve global CSS in components
  • Reduce SSR render result garbage collection
  • Resolve fallback of each block
  • Prevent effect tree interference

Upgrade Notes

The newer release is a different library than the older one, so no direct upgrade path exists.

The Two Releases

v3.0.10

v3.0.10

Sep 16, 2026· 1 month ago

Introduces Azure OpenAI Responses, Elasticsearch vector database, and documentation Markdown transforms. Includes improvements to MCP configuration and fixes for Slack deduplication, Reader support for text streams, and agnoctl UTF-8 handling.

Full release notes
svelte@5.57.1

svelte@5.57.1

Sep 18, 2026· 1 month ago

Patch release fixing SSR behavior, parser performance, event listener cleanup, and removing the WAS_MARKED flag.

Full release notes