v1.13.5

vercel/streamdownv1.13.5Jul 31, 2026by boks1971

AI Summary

Added testing mocks for region pins, improved VP9 simulcast handling, and fixed video packet padding and telemetry race conditions.

Key Highlights

Added mock for testing region pins with API
Improved VP9 simulcast constructor
Fixed padding bit in forwarded packets
Fixed telemetry listener race condition

New Features

Mock for testing region pins
VP9 simulcast constructor
Support for more h264 profiles
Status code for prometheus metrics

Full Release Notes

### Added

- add mock for testing region pins with API (#4691)
- Add country to participant closing log (#4693)
- Tests for down stream packet push. (#4692)
- Add status code for twirp request latency prometheus metric (#4621)
- Support more h264 profiles (#4708)
- log high stream start latency. (#4714)

### Changed

- Use simulcast constructor for VP9 if simulcasted. (#4696)
- send resolved ringing timeout (#4697)
- Update go deps (#4645)
- protocol deps for logging webhook status (#4699)
- protocol update with webhook status logging (#4700)
- Record subscribe stream start time in prometheus. (#4704)
- A bit better counting for track publish. (#4707)

### Fixed

- Fix padding bit in forwarded packet. (#4690)
- Spelling fixes (#4698)
- Do not call telemetry listener under pending track lock. (#4706)
- Fix getRefLayerRTPTimestamp off-by-one that can panic on max layer index (#4712)