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betaflight release notes Betaflight 3.5.1

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Maintenance Release

Please read the Betaflight 3.5 Release Notes.

This release contains bugfixes and target changes only. For a full list of new features see 3.5.0.

We have tried to make this release as bug free as possible. If you still find a bug, please report it back to us by opening an issue here.

We also have a Facebook Group: If you want to talk about Betaflight, ask configuration questions, or just hang out with fellow pilots, you can do this here.

Important information when upgrading from an earlier version of 3.5

  • a number of users reported issues with the firmware hanging during a diff or dump. The root cause of this was identified as a bug in the MSP protocol causing corrupted configurations. This was fixed in 3.5.1. If you are using 3.5.0, it is recommended that you upgrade to 3.5.1, to eliminate the risk of experiencing lockups during diff or dump caused by this bug (#6696).


  • Fixed bug in dispatcher causing lockup when consumers are double-scheduling the same entry (#6560);
  • Fixed overriding of GPS RESCUE mode information by other modes in OSD (#6580);
  • Fixed bug preventing copying of rate profile 6 (#6612);
  • Fixed double scheduling issue in Spektrum SRXL telemetry (#6670);
  • Fixed initialisation problem for timers assigned to servos (#6679);
  • Fixed problem with crash recovery acting slow (#6682);
  • Fixed range of 'iterm_windup' parameter (#6686);
  • Fixed issue in FPort causing 'Retrying...' messages when saving settings in lua (#6688);
  • Fixed MSP protocol issue causing lockups on 'diff' / 'dump' (#6696).

Target Updates:

  • Added new board HAKRCF722 (#6631);
  • Changed default value for 'gyroMovementCalibrationThreshold' on DALRCF722DUAL (#6643).

Lire la source

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