Many code fixes

Thanks to @rgetz many code fixes were introduced that should bring more reliability and make it future proof.

Ubuntu 26.04 release

Thanks to @srcejon we have now a build for Ubuntu 26.04

What's Changed

• Improve PlutoSDR discovery robustness and identitection mgr by @rgetz in https://github.com/f4exb/sdrangel/pull/2787
• libsigmf: Fix path to library for Mac build by @srcejon in https://github.com/f4exb/sdrangel/pull/2790
• Attempt to fix corrupt spectrum on Mac when MSAA enabled. by @srcejon in https://github.com/f4exb/sdrangel/pull/2791
• Add detection for 3 more architectures by @dawkagaming in https://github.com/f4exb/sdrangel/pull/2792
• Fix WebAPI link in About dialog (Display 127.0.0.1 rather than 0.0.0.0) by @srcejon in https://github.com/f4exb/sdrangel/pull/2794
• bump bundled faad2 to 2.10.1, fixes heap overflow (#2766) by @munzzyy in https://github.com/f4exb/sdrangel/pull/2795
• Android Qt6 support by @srcejon in https://github.com/f4exb/sdrangel/pull/2796
• LocalSink: fix crash when adding channel with no Local Input device (#2764) by @munzzyy in https://github.com/f4exb/sdrangel/pull/2797
• cmake: enforce minimum versions for CM256cc and Codec2 dependencies by @rgetz in https://github.com/f4exb/sdrangel/pull/2799
• fix some minor issues coverity pointed out in adsbmodgui by @rgetz in https://github.com/f4exb/sdrangel/pull/2800
• Update bladerf to 2025.10 by @srcejon in https://github.com/f4exb/sdrangel/pull/2809
• AaroniaRTSAInput::webapiReportGet: getAaroniaRtsaReport rather than getAirspyHfReport. by @srcejon in https://github.com/f4exb/sdrangel/pull/2810
• Fix kiwiSDRs on Map by @srcejon in https://github.com/f4exb/sdrangel/pull/2811
• PlutoSDR: Guard against null buddy shared pointers | Fix #2779 by @rgetz in https://github.com/f4exb/sdrangel/pull/2812
• WDSP: Fix distorted AM audio when AGC is disabled. by @srcejon in https://github.com/f4exb/sdrangel/pull/2813
• plutosdr: Update RX gain limits dynamically from hardware by @rgetz in https://github.com/f4exb/sdrangel/pull/2814
• Fix coverity int handling issues by @rgetz in https://github.com/f4exb/sdrangel/pull/2816
• AM Demod: Snap to nearest centre frequency. by @srcejon in https://github.com/f4exb/sdrangel/pull/2817
• Fix Coverity UNINIT warnings in RadioAstronomy and VOR Localizer by @rgetz in https://github.com/f4exb/sdrangel/pull/2818
• Remove redundant ui null check in MeshcoreDemodGUI by @rgetz in https://github.com/f4exb/sdrangel/pull/2820
• APRS: Fix memory leak. by @srcejon in https://github.com/f4exb/sdrangel/pull/2821
• Fix missing YAML-to-SWG mappings for MeshCore plugins by @gretel in https://github.com/f4exb/sdrangel/pull/2823
• Fix built-in device selection regression by @rgetz in https://github.com/f4exb/sdrangel/pull/2824
• ft8: replace temporary malloc buffer with std::vector by @rgetz in https://github.com/f4exb/sdrangel/pull/2825
• Improve RadioAstronomyGUI robustnes by @rgetz in https://github.com/f4exb/sdrangel/pull/2828
• WDSP: Fix invalid iterator ranges in SPHP flush by @rgetz in https://github.com/f4exb/sdrangel/pull/2829
• Fix -DWITH_STACK_PROTECTOR=PFF typo. by @srcejon in https://github.com/f4exb/sdrangel/pull/2832
• PlutoSDR: keep device open state consistent after close by @rgetz in https://github.com/f4exb/sdrangel/pull/2836
• step 1 : reduce vla usage by @rgetz in https://github.com/f4exb/sdrangel/pull/2840
• step2 : reduce vlas by @rgetz in https://github.com/f4exb/sdrangel/pull/2841
• DATV: Convert leansdr fail and fatal errors into C++ exceptions by @rgetz in https://github.com/f4exb/sdrangel/pull/2842
• wdsp: Prevent potential out-of-bounds array access by @rgetz in https://github.com/f4exb/sdrangel/pull/2843
• testmi: Fix missing m_title copy in TestMISettings by @rgetz in https://github.com/f4exb/sdrangel/pull/2844
• Attempt to fix debian build by @srcejon in https://github.com/f4exb/sdrangel/pull/2849
• Fix UDP port validation boolean operations by @rgetz in https://github.com/f4exb/sdrangel/pull/2845
• FT8/FT4: Remove uninitialized value warnings by @rgetz in https://github.com/f4exb/sdrangel/pull/2846
• Fix Astronomy::azAltToXY85 when azimuth or elevation is 0. by @srcejon in https://github.com/f4exb/sdrangel/pull/2847
• GLScope: Fix missing freerun setting copy in assignment operator by @rgetz in https://github.com/f4exb/sdrangel/pull/2850
• ADSB Demod: Fix incorrect iterator range when restoring column sizes by @rgetz in https://github.com/f4exb/sdrangel/pull/2851
• continue to reduce (eliminate) VLA usage from leansdr by @rgetz in https://github.com/f4exb/sdrangel/pull/2852
• serialutil: Remove dead code in Windows COM port enumeration by @rgetz in https://github.com/f4exb/sdrangel/pull/2854
• chirpchat: Fix FT8 message type 0.4 reply detection by @rgetz in https://github.com/f4exb/sdrangel/pull/2855
• ft8: Fix CRC message length type causing memcpy overflow warning by @rgetz in https://github.com/f4exb/sdrangel/pull/2856
• cleanup printf format specifiers by @rgetz in https://github.com/f4exb/sdrangel/pull/2857
• appbench, appsrv: Fix malformed QCoreApplication::applicationVersion() by @rgetz in https://github.com/f4exb/sdrangel/pull/2858
• ADS-B Demod: Support OpenSky authentication and decoder fixes by @srcejon in https://github.com/f4exb/sdrangel/pull/2859
• gui: Explicitly call QSlider::setRange in LogSlider constructor by @rgetz in https://github.com/f4exb/sdrangel/pull/2860
• Fix cppcheck-reported function argument order mismatches by @rgetz in https://github.com/f4exb/sdrangel/pull/2861
• fix undefined behavior related to left-shifting negative values, as reported by cppcheck. by @rgetz in https://github.com/f4exb/sdrangel/pull/2863
• leansdr: Properly initialize QPSK hist buffer by @rgetz in https://github.com/f4exb/sdrangel/pull/2866
• Remove remaining variable length arrays from demoddatv/ldpctool/generic.h by @rgetz in https://github.com/f4exb/sdrangel/pull/2862
• Fix two potential undefined behavior issues in DeviceAPI buddy list management. by @rgetz in https://github.com/f4exb/sdrangel/pull/2865
• valuedialz: Fix signed/unsigned conversion when editing negative values by @rgetz in https://github.com/f4exb/sdrangel/pull/2867
• vorlocalizer: Fix round robin plan sorting comparator by @rgetz in https://github.com/f4exb/sdrangel/pull/2868
• fix various uninit member vars reported by Coverity and cppcheck by @rgetz in https://github.com/f4exb/sdrangel/pull/2871
• AIS, Packet and Pager demodulator improvements by @srcejon in https://github.com/f4exb/sdrangel/pull/2873
• Address issues identified by Coverity in the PlutoSDR device discovery path. by @rgetz in https://github.com/f4exb/sdrangel/pull/2877
• fix uninit struct members by @rgetz in https://github.com/f4exb/sdrangel/pull/2864
• Fix cppcheck-reported out-of-bounds accesses by @rgetz in https://github.com/f4exb/sdrangel/pull/2869
• Fix QT_NMEA_SERIAL_PORT on Qt 6 by @Newspicel in https://github.com/f4exb/sdrangel/pull/2879
• Fix resource ownership and cleanup issues across several SDRangel components. by @rgetz in https://github.com/f4exb/sdrangel/pull/2880
• afc: fix iterator invalidation when removing channels by @rgetz in https://github.com/f4exb/sdrangel/pull/2881
• Initialize members identified by cppcheck as potentially uninitialized across the demodulator and channel code. by @rgetz in https://github.com/f4exb/sdrangel/pull/2882
• channel: fix bandwidth index validation by @rgetz in https://github.com/f4exb/sdrangel/pull/2883
• sdrbench: fix RRC and FFT test file handling by @rgetz in https://github.com/f4exb/sdrangel/pull/2884
• Add Ubuntu 26.04 Qt 6 .deb github build action by @srcejon in https://github.com/f4exb/sdrangel/pull/2892

New Contributors

• @munzzyy made their first contribution in https://github.com/f4exb/sdrangel/pull/2795
• @Newspicel made their first contribution in https://github.com/f4exb/sdrangel/pull/2879

Full Changelog: https://github.com/f4exb/sdrangel/compare/v7.27.1...v7.27.2