TL;DR

• New app: NFC/RFID Detector - allows to detect which technology reader uses(field detection), also detects frequency for RFID readers
• Application Loader: blazingly fast app loading with new relocation technique, refactoring, various fixes and improvements
• Nfc: MFC key invalidation fixes, NFC-V improvements, SLIX2 emulation support
• NfcMagic: various improvements and bug fixes
• SubGhz: new transceiver(device) API layer, external CC1101 support, opens way to use subghz app with transceivers other than CC1101
• Debug: properly attach to running flipper application, various assert utilities improvements
• Infrared: various additions to universal remotes
• BadUsb: fr-FR-mac layout fixes
• BLE/USB Remote: additional vertical keynote layout
• Gui: scroll acceleration(page scroll)
• System: various fixes and improvements
• Picopass: various fixes and improvements

Known Issues

• Rare Core2 HardFaults in sleep mode, currently is being investigated by ST, waiting for their conclusion. Workaround: switch sleep mode to Legacy. Details on deep sleep can be found in our blog https://blog.flipperzero.one/1-month-battery-life-with-firmware-update/ Issues can be reported on our forum: https://forum.flipperzero.one/t/flipper-zero-low-power-mode/15494

What's Changed

• Debug: sync apps on attach, makes it possible to debug already started app that has crashed by @skotopes in https://github.com/flipperdevices/flipperzero-firmware/pull/2778
• [FL-2837][FL-3270] Loader refaptoring: second encounter by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2779
• [FL-3373] Scroll acceleration by @Astrrra in https://github.com/flipperdevices/flipperzero-firmware/pull/2784
• fix: make dialog_file_browser_set_basic_options initialize all fields by @JarvisCraft in https://github.com/flipperdevices/flipperzero-firmware/pull/2756
• Fix M*LIB usage by @P-p-H-d in https://github.com/flipperdevices/flipperzero-firmware/pull/2762
• Actions: unit_test and updater timeouts by @doomwastaken in https://github.com/flipperdevices/flipperzero-firmware/pull/2807
• LF-RFID debug: make it work by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2793
• [FL-3386] Fast FAP Loader by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2790
• [FL-3388] NFC/RFID detector by @Skorpionm in https://github.com/flipperdevices/flipperzero-firmware/pull/2795
• Fix furi_hal_bus related crashes in plugins by @xMasterX in https://github.com/flipperdevices/flipperzero-firmware/pull/2799
• Fix fr-FR-mac keylayout by @FelixLgr in https://github.com/flipperdevices/flipperzero-firmware/pull/2809
• Fix roll-over in file browser and archive by @Astrrra in https://github.com/flipperdevices/flipperzero-firmware/pull/2811
• Add Mitsubishi MSZ-AP25VGK universal ac remote by @minchogaydarov in https://github.com/flipperdevices/flipperzero-firmware/pull/2800
• Added Power Button for an unknown Sharp Model by @m0veax in https://github.com/flipperdevices/flipperzero-firmware/pull/2787
• NFC: Improvements to NFC Magic app by @AloneLiberty in https://github.com/flipperdevices/flipperzero-firmware/pull/2760
• Keynote with vertical layout by @Kami-no in https://github.com/flipperdevices/flipperzero-firmware/pull/2794
• SLIX2 emulation support / practical use for Dymo printers by @g3gg0 in https://github.com/flipperdevices/flipperzero-firmware/pull/2783
• NFC: Fix key invalidation logic by @AloneLiberty in https://github.com/flipperdevices/flipperzero-firmware/pull/2782
• [FL-3211][FL-3212] Debug apps: speaker, uart_echo with baudrate by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2812
• increased timeouts by @doomwastaken in https://github.com/flipperdevices/flipperzero-firmware/pull/2816
• Furi,FuriHal: various improvements by @skotopes in https://github.com/flipperdevices/flipperzero-firmware/pull/2819
• [FL-3375] SubGhz: add CC1101 module external by @Skorpionm in https://github.com/flipperdevices/flipperzero-firmware/pull/2747
• fix width of submenu items on Vertical orientation by @gebeto in https://github.com/flipperdevices/flipperzero-firmware/pull/2306
• SubGHz: properly working with missing external driver by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2821
• [FL-3398] Desktop settings: show icon and name for external applications by @DrZlo13 in https://github.com/flipperdevices/flipperzero-firmware/pull/2837
• Picopass fix ice by @bettse in https://github.com/flipperdevices/flipperzero-firmware/pull/2836
• [FL-3397] FuriHal, Infrared, Protobuf: various fixes and improvements by @skotopes in https://github.com/flipperdevices/flipperzero-firmware/pull/2845
• FuriHal: allow nulling null isr by @skotopes in https://github.com/flipperdevices/flipperzero-firmware/pull/2846
• Furi_Power: fix furi_hal_power_enable_otg by @Skorpionm in https://github.com/flipperdevices/flipperzero-firmware/pull/2842
• [FL-3407] NFC: Mf Ultralight emulation optimization by @gornekich in https://github.com/flipperdevices/flipperzero-firmware/pull/2847
• SubGhz: fix check connect cc1101_ext by @Skorpionm https://github.com/flipperdevices/flipperzero-firmware/pull/2857

New Contributors

• @P-p-H-d made their first contribution in https://github.com/flipperdevices/flipperzero-firmware/pull/2762
• @m0veax made their first contribution in https://github.com/flipperdevices/flipperzero-firmware/pull/2787
• @gebeto made their first contribution in https://github.com/flipperdevices/flipperzero-firmware/pull/2306

Ongoing

• Application catalog: public beta start
• Furi & FuriHal improvements and release 1.0.0 preparation
• Documentation
• NFC refactoring
• Main apps to SD migration
• Power service refactoring and gauge drift fix

Full Changelog: https://github.com/flipperdevices/flipperzero-firmware/compare/0.85.2...0.86.2