The firmware update cycle is heating up—but watch what actually matters. INAV 9.1.0 and PX4 1.17.0 dropping in quick succession signals real competition in open-source autopilot stacks, which matters for FPV and commercial operators building on non-proprietary platforms. Betaflight's rapid minor releases (two in days) are noise—typical patch velocity that doesn't justify switching unless you're chasing specific bug fixes. The actual story: PX4's trajectory toward autonomous reliability is pulling serious weight in industrial/mapping verticals, while INAV owns the racing/freestyle corner. For hobbyists, this is background radiation; for businesses evaluating flight control architecture, this is due diligence material.