• Support for Sparky2 flight controller and SparkyBGC brushless gimbal controller!
• ChibiOS is now used instead of FreeRTOS on some targets (Quanton, Sparky, FlyingF3, Colibri) which in turn reduces system resource utilization.
• Improvements to Pipxtreme / OpLink / TauLlink / TauLink module and RFM22 telemetry support, both to RF backend and support for new binding wizard in GCS.
• Baseline support for OpenLRS on targets with integrated RFM22 radios.
• Improvements to navigation; position feedforward control scheme, soft deadbands to assist waypoint capture, improvements to waypoint handling. Numerous bugfixes and performance improvements. Also, a new improved 14 state INS. Also improvements to GPS interface and autoconfiguration.
• Restore support for autotune on CopterControl target.
• Support for Oneshot/synchronous PWM for better control loop latency/tau/system bandwidth.
• Various improvements to PicoC support.
• Improvements to arming/disarming. Arming and disarming times are configurable. There are new switch+delay and switch+throttle+delay modes that allow gyro offset calibration during the delay time.
• New flightstats module that tracks flight distances, battery used, speeds and altitudes, etc.
• Support for RSSI information via S.bus, native FrSky PWM RSSI support, display of RSSI information in GCS.
• Functionality for developers, including new Python API, improved and unified Posix simulators, improved compilation speeds, etc.
• Various other performance and stability improvements.

Installation notes:

• For Linux you will have to install .udev rules for the device. This is the likely cause if you cannot connect to it. To do this download the udev permissions file from here and then run sudo cp taulabs.udev /etc/udev/rules.d/45-taulabs-permissions.rules && sudo udevadm control --reload-rules
• For Windows if you have any connectivity issues, please uninstall all the drivers associated with your hardware and reboot.

Known issues:

• GPS satellite count in PFD can be missing or wrong.
• RevoMini does not work with SBus.
• FlyingF3 does not have enough memory to save telemetry rate settings for all object