The ArduPilot development team is delighted to announce the release of the 3.9.4 plane firmware. This is a minor update over the 3.9.3 release. Changes are:
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fixed a critical bug in SBUS handling on the Pixhawk4
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fixed bugs in benewake rangefinder driver
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added support for garmin LidarLite-V3HP
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improved error handling for TeraRanger Lidar
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fixed a bug in DSM handling for more than 7 channels on FMU-only boards
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fixed default voltage and current scaling for Pixhawk4 and PH4-mini
Many thanks to everyone who contributed to this release.
Happy flying!