4.5.5

dmachat/angular-webpack-cookbook4.5.5Jun 28, 2026by blckmn

AI Summary

This release focuses on fixing MSP (Multi-Serial Port) communication stability by correcting how pending requests are cancelled when encountering the '$' character. It also restores the per-byte lastActivityMs tracking mechanism to ensure accurate timing.

Key Highlights

Fixed MSP pending request cancellation to occur on '$' only
Restored per-byte lastActivityMs functionality
Contributed by @nerdCopter

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