Linux x86_64 development build from commit 64e2501.
Download the archive and checksum, extract it, and run ./run.sh.
The included README lists runtime-only dependencies; no SDK or compiler is needed.
Source and instructions: https://github.com/ArduPilot/MissionPlanner/tree/64e2501e37ce6ee3ef0d9f6b53a35327f9f3ab6e/Linux