Roadmap & Feature Overview

This is a minor bug fix release on top of PX4 Stable v1.8.1

• mc_att_control: copy sensor_correction topic once initially #10830

This is a minor bug fix release on top of PX4 Stable v1.8.0

• mavlink properly wrap heading fields #9905
• Navigator: Fix fixed-wing first order altitude hold #9850
• fmu fix MAIN/AUX parameters #9925
• cmake fix BUILD_URI #9941
• tap_esc increase stack 1100 -> 1180 bytes #10041
• mavlink: fixed nullptr dereferencing #10063

• Fusion of Visual Inertial Odometry in EKF2 (video)
• Interface for external Obstacle Avoidance systems (video)
• Significantly improved performance on racing drones (users need to reconfigure, link)
  • Improved filtering and reduced control latency
  • Added Airmode
• Improved flight performance on VTOL (Tiltrotors, Tailsitters)
• Support for building natively on Windows (link)
• Significant EKF2 improvements
  • Hardening of the estimator for situations where GPS accuracy is limited
    improved sensor selection logic enabling simultaneous use of optical flow and GPS
  • Added the EKF2_MAG_TYPE parameter for environments with high magnetic interferences
• Wind Estimator
• Support for structure scanning
• High Latency telemetry support (Iridium)
• Precision landing framework (including IRLock driver)
• FMUv5: Pixhawk 4 and Pixhawk 4 mini from Holybro and Pixhack v5 from CUAV
• Crazyflie 2.0 with optical flow deck
• Omnibus F4 SD
• Snapdragon 8074 with VIO enabled (video, 820 support coming)
• IRLock sensor for precision landing
• ST LPS22HB barometer driver
• Analog devices IMUs (ADIS16477, ADIS16448)
• TeraRanger Evo 600Hz support

• First-generation experimental support for ROS2-like setups with FastRTPS
• Support for many new sensors (LIDAR, airspeed, IMU, etc)
• Significant robustness improvements and new features in default estimation system (EKF2)
• Significant improvements to VTOL flight control
• Increased smoothness of multicopter flight control
• Better performance of fixed wing flight control
• Many build system improvements (including 50% faster nuttx builds)
• New continuous integration system system (http://ci.px4.io) with significantly more build and testing capacity
• Many improvements and fixes in various subsystems, as listed below.
• Reduced CPU load and RAM usage

Maintenance release:

• Various maintenance issues, bugfixes
• Ensures pausing a mission pauses on-spot and not only at the next waypoint.

Maintenance release:

This release includes a number of fixes

• Pixhawk Mini: Improve mag boot stability
• Pixhawk 3 Pro: Improve mag boot stability
• GCC7 compile fixes
• Sensirion SDP3x driver
• Measurement Specialties MS5525 driver
• Add hard fault logs to .ulg flight log files
• Fixed wing: Handle loiter relative alt correctly