# HyperFrames v0.6.116

Released on 2026-06-20.

This hotfix improves render reliability across WebM and MP4 outputs: VP9 encodes now use a shared, tunable speed default across render paths, and MP4 muxing preserves AAC start offsets so audio stays aligned.

## Fixes

- **Engine:** Preserve AAC start time during MP4 mux ([0473254b](https://github.com/heygen-com/hyperframes/commit/0473254bdd8a545991a52d0e547d7d62e2b1f5a6), [#1615](https://github.com/heygen-com/hyperframes/pull/1615))
- **Engine:** Tune VP9 cpu-used across render paths ([8408a447](https://github.com/heygen-com/hyperframes/commit/8408a4474553307f8b82e65d8847922f482bd9c7), [#1614](https://github.com/heygen-com/hyperframes/pull/1614))

## Full changelog

https://github.com/heygen-com/hyperframes/compare/v0.6.115...v0.6.116