v1.18.0-beta2

What's Changed

This is a pre-release for flight testing, full release notes can be found here.

Fixes since beta1:

• Fixed-wing: NaN eas2tas from zero-airspeed division in lat/lon control (#28107), tailsitter false quadchute from wrong attitude frame (#27834)
• QGC compatibility regressions from stricter command validation: multicopter guided takeoff, camera mission items, and VTOL landing patterns are accepted again (#27853, #28079)
• SD card read corruption on STM32H7 boards fixed via NuttX SDMMC cache coherency (#28071)
• Parameter storage: FMUv6X-RT FRAM multi-page writes (#28127), flashparams compaction moved to boot (#28093)
• FMUv6X-RT: boot-time FlexSPI DLL calibration, fixing load-dependent hardfaults (#28141)
• Estimator: external position estimate hard reset while aiding is active (#27856), DroneCAN rangefinder out-of-range readings no longer fused as terrain (#27963)
• Navigation: DO_JUMP set as current mission item is resolved to its target (#28063)
• Battery: unknown time-remaining no longer trips RTL (#27929), coulomb counting uses unclamped dt (#27866)
• Commander: COM_PARACHUTE warning-only mode (#27903), multicopter autotune can re-trigger without reboot (#27851)
• VOXL2 / Qurt platform: implement px4_task_join (#27886), Hexagon NaN comparison fixes (#27931), startup stdout TLS race (#28013), keepalive file directory (#28053)
• GPS: RTCM corrections and moving-baseline data split into separate uORB topics (#27097)
• MAVLink: receive thread stack right-sized (#28124); FMUv4 (Pixracer) configs right-sized for flash margin, dropping UAVCAN, uXRCE-DDS, mag bias estimator, and SIH from the default build (#28124)
• Boards: CUAV X25-mega uses the renamed heater sensor ID parameter (#27846)

Full Changelog: v1.18.0-beta1...v1.18.0-beta2