Came across this today. Seems that there have been efforts to make MissionPlanner cross platform, but in 2025, active development is nonexistent. My question is why? Does APM Planner 2 work well as is? Did maintainers abandon this project? If so, should it really be in ArduPilot Documentation? Kind of misleading… a newbie could think MissionPlanner is outdated and download APM Planner 2 and miss out on a whole suite of features… There is many open issues on APM planner 2 github repo: GitHub - ArduPilot/apm_planner: APM Planner Ground Control Station (Qt)
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If you’re looking for a cross platform alternative to Mission Planner then look at QGC.
AMP Planner 2 … Don’t know why, but it’s dead. As somebody who started this journey (a long time ago) from Mac, I get it.
IIRC APM Planner 2 od a fork of QGC. It shares the same development downsides as QGC like inability to use GUI editors and unlike GQC doesn’t have the PX4 aligned devs working on it.
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But it does appear that no updates have been done for over 2 years.