Linux x86_64 development build from commit 223abcb.
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/223abcb7910776d587e5698395c3fa098de3fde9/Linux