v1.6.0 Release Candidate 4

Improvements on mag calibration on FMUv4 hardware

v1.6.0 Release Candidate 3

• Improvements on EKF2 stability
• General improvements of stability and usability

v1.6.0 Release RC2

Second release candidate for v1.6.0. Release notes TBC

1.6.0 Release RC1

This is a release candidate for the current beta branch, nominally tagged as 1.6.0. We will likely conclude to skip 1.6-1.9 in favour of releasing a 2.0.0 in a couple weeks, so consider this release candidate a reasonably well tested snapshot (hence the RC naming) of the current development and not a preview for the next stable release.

v1.5.5 Stable Release

Minor bugfixes and improvements over v1.5.4.

Release v.1.5.4

Geofence fix and re-labeled from v1.5.3 to v1.5.4 to fix version indication in QGC.

Release v1.5.2

Improves the calibration handling on Pixhawk 2.1 boards.

Release v1.5.1

This release changes the estimator to EKF2 for all vehicles as it is the most tested in typical outdoor scenarios. Indoor scenarios and general R&D applications continue to benefit greatly from the LPE estimator.

To switch back to the previous default, set SYS_MC_EST_GROUP to 1. To use EKF2, set SYS_MC_EST_GROUP to 2.

Most notable changes / improvements:

• EKF2 default estimator
• STM32F7 support added
• Crazyflie support added
• Parrot Bebop 2 support added
• Log streaming via Wifi to the ground and straight to the cloud
• New log analysis tool with real-time zoomable plots (logs.px4.io)
• Reduction of memory footprint
• Performance improvements in VTOL flight control
• Pre-flight check improvements on EKF2
• Side-slip support in EKF2

Hardware support

• Intel Aero Flight Control
• Qualcomm Snapdragon Flight
• Parrot Bebop 2
• Raspberry Pi / Emlid Navio 2+
• CrazyFlie
• Pixhawk 1 (FMUv2 architecture)
• Pixhawk (2) Mini (FMUv3 architecture)
• Pixhawk 2 (FMUv3 architecture)
• Pixracer (FMUv4 architecture)
• Dronesmith Lucy (FMUv4 architecture)
• MindPX (FMUv4 architecture)
• Pixhawk 3 Pro (FMUv4-PRO architecture)
• Upcoming Pixracer 4 & Pixhawk 4 (FMUv5 architecture, STM32F7)

1.5.1 Release RC4

Final release candidate. This release changes the estimator to EKF2 for all vehicles as it is the most tested in typical outdoor scenarios. Indoor scenarios and general development continue to benefit greatly from the LPE estimator.

To switch back to the previous default, set SYS_MC_EST_GROUP to 1. To use EKF2, set SYS_MC_EST_GROUP to 2.

Most notable changes / improvements:

• EKF2 default estimator
• STM32F7 support added
• Crazyflie support added
• Parrot Bebop 2 support added
• Log streaming via Wifi to the ground and straight to the cloud
• New log analysis tool with real-time zoomable plots (logs.px4.io)
• Reduction of memory footprint
• Performance improvements in VTOL flight control
• Pre-flight check improvements on EKF2
• Side-slip support in EKF2

Hardware support

• Intel Aero Flight Control
• Qualcomm Snapdragon Flight
• Parrot Bebop 2
• Raspberry Pi / Emlid Navio 2+
• CrazyFlie
• Pixhawk 1 (FMUv2 architecture)
• Pixhawk 2 Mini (FMUv3 architecture)
• Pixhawk 2 (FMUv3 architecture)
• Pixracer (FMUv4 architecture)
• Pixhawk 3 Pro (FMUv4-PRO architecture)
• Upcoming Pixracer 4 & Pixhawk 4 (FMUv5 architecture, STM32F7)

1.5.1 Release RC3

Minor improvements over RC1 and RC2:

• Better differential pressure / airspeed preflight check
• Better default gains for Intel Aero RTF drone