4.5.5

FranckyB/Voice-Clone-Studio4.5.5Jun 28, 2026by blckmn

AI Summary

This release focuses on fixing communication protocol issues within the MSP (Multi-Speed Protocol) and UART handling to ensure stable data transmission.

Key Highlights

Fix MSP pending request cancellation logic
Restore per-byte lastActivityMs functionality
Clear ORE when RXNEIE is enabled in UART IRQ handler

Full Release Notes

<!-- Release notes generated using configuration in .github/release.yml at 4adbd3ef7cb546947600e5f747bd5453c9573063 -->

## What's Changed
### Fixes
* [4.5] fix(msp): cancel pendingRequest on '$' only, restoring per-byte lastActivityMs by @nerdCopter in https://github.com/betaflight/betaflight/pull/15330


**Full Changelog**: https://github.com/betaflight/betaflight/compare/4.5.4...4.5.5