2025.12.4

MiniMax-AI/MiniMax-012025.12.4Jun 2, 2026by blckmn

AI Summary

This maintenance release focuses on stability and bug fixes for the Betaflight firmware, addressing race conditions in CLI MSP, configuration clamping issues, and UART handling.

Key Highlights

Backport CLI MSP race-condition fix
Unconditionally clamp failsafe_procedure to valid range
Guard half-duplex pinless UART modes

Full Release Notes

<!-- Release notes generated using configuration in .github/release.yml at 2025.12-maintenance -->

## What's Changed
### Fixes
* [2025.12] Backport CLI MSP race-condition fix (#15193) by @blckmn in https://github.com/betaflight/betaflight/pull/15201
* [backport] fix(config): unconditionally clamp failsafe_procedure to valid range by @nerdCopter in https://github.com/betaflight/betaflight/pull/15191
* [backport] fix(uart): guard half-duplex pinless UART modes (#15218) by @haslinghuis in https://github.com/betaflight/betaflight/pull/15258


**Full Changelog**: https://github.com/betaflight/betaflight/compare/2025.12.2...2025.12.4