v4.13.8 v2.10.1
DavidHDev/react-bitsSep 15, 2026 → Sep 15, 20260 days between releases
What's New
Significant performance optimizations in JSX reconciliation and C# SDK, plus a change in scheduled function execution order.
Breaking Changes
- Scheduled functions are no longer guaranteed to run in strict `scheduled_at` order
- CLI commands now read the server value from project configuration instead of global defaults
New Features
- Scheduled functions execute concurrently to prevent blocking
Improvements
- Reduced lookup work for large keyed updates in JSX DOM
- AWS Lambda streaming respects backpressure
- Accept header matching logic fixed for quality and case-insensitivity
- C# SDK performance boost via direct loops and array pooling
Bug Fixes
- Fixed AWS Lambda streaming backpressure
- Fixed Accept header matching logic
- CLI commands now correctly read server from config
Upgrade Notes
Scheduled functions may run out of order if expired, though timestamps remain monotonic. CLI users must ensure `spacetime.json` contains the correct server configuration.
The Two Releases
v4.13.8
Sep 15, 2026· 1 month ago
This release focuses on performance optimizations and bug fixes, specifically improving JSX DOM reconciliation for large updates and fixing AWS Lambda streaming backpressure.
Full release notesRelease v2.10.1
Sep 15, 2026· 1 month ago
This release focuses on CLI consistency, concurrent execution for scheduled functions to prevent blocking, and a significant performance optimization for the C# SDK.
Full release notes