TL;DR

• Last piece of Update from SD
• BLE: fix issues with profile change and keyboard crash
• FuriHal: improvement and bugfixes, deep sleep saga part 6
• SubGhz: new protocol Firefly, Princeton improvements
• Nfc: NTAG (Amiibo) emulation and read improvements, DESFire read crash fix
• BadUsb: faster input rate
• Storage: fix memleaks and improve directory open handling

Changelog

• [FL-2515] Keep backlight on for updater ops (#1184)
  • [FL-2515] Keep backlight on for updater ops
  • Notification: Renamed backlight sequences to more obvious names
• [FL-2399, FL-2261] Tickless sleep shenanigans (#1168)
  • Disable USART in sleep
  • Restore UART state on suspend/resume
  • FuriHal: Enable stop mode and add insomnia to I2C and SPI
  • Remove IDLE interrupt
  • FuriHal: add FPU isr and disable all FPU interrupt, add core2 stop mode configuration on deep sleep
  • FuriHal: tie stop mode debug with debug rtc flag
  • FuriHal: adjust flash latency on clock switch, tie mcu debug with RTC debug flag
  • FuriHal: move resource init to early stage
  • Add EXTI pending check, enable debug traps with compile-time flag
  • Wrap sleep debug functions in conditional compilation
  • Remove erroneous changed
  • Do not use CSS, remove it from everywhere
  • Enable/disable USB on VBUS connect (prototype)
  • FuriHal: add LPMS and DEEPSLEEP magic, workaround state inconsistency between cores
  • FuriHal: honor c1 LMPS
  • USB mode switch fix
  • Applications: add flags and insomnia bypass system
  • Correct spelling
  • FuriHal: cleanup insomnia usage, reset sleep flags on wakeup, add shutdown api
  • FuriHal: extra check on reinit request
  • FuriHal: rename gpio_display_rst pin to gpio_display_rst_n
  • FuriHal: add debug HAL
  • FuriHal: add some magic to core2 reload procedure, fix issue with crash on ble keyboard exit
  • FuriHal: cleanup ble glue, add BLE_GLUE_DEBUG flag
  • FuriHal: ble reinit API, move os timer to LPTIM1 for deep sleep capability, shutdown that works
  • FuriHal: take insomnia while shutdown
  • Remove USB switch on/off on VBUS change
  • Better tick skew handling
  • Improve tick consistency under load
  • Add USB_HP dummy IRQ handler
  • Move interrupt check closer to sleep
  • Clean up includes
  • Re-enable Insomnia globally
  • FuriHal: enable CSS
  • FuriHal: remove questionable core2 clock shenanigans
  • FuriHal: use core1 RCC registers in idle timer config
  • FuriHal: return back CSS handlers, add lptim isr dispatching
• SubGhz add protocol Firefly (#1183)
  • SubGhz: add protocol "Firefly"
  • SubGhz: refactoring "Add Manually" scene
  • SubGhz: refactoring Firefly protocol
• [FL-2163] CLI: Separate session from CLI service (#1130)
  • CLI: session refactoring
  • Added forgotten define
  • Desktop lock state save
  • Dolphin: use proper type for value returned by dolphin_state_xp_to_levelup
• Assets: update compile steps for docker-compose (#1181)
  #1176
• [FL-2456] App notifications update (#1175)
  • Notifications update: SubGHz
  • Notifications: ibutton, infrared, rfid
• [FL-2507] Fix NTAG21x emulation fix (#1179)
  • mifare ultralight: add support fast read to NTAG21x
  • emv: add log traces
• [FL-2510] Fixed BT startup while backing up LFS (#1180)
  • Waiting for dummy BT record on LFS ops; cleaner retry for backup file open
  • Fixed files not being closed on failed open
• [FL-2495] Archive: Refresh file list on application exit #1170
• [FL-2494, FL-2497] PIN Lock refactoring, IR library fix (#1167)
  • PIN Lock refactoring
  • Change tv.ir file type to prevent opening from archive
  • Manifest update
  • Assets: enforce sorting in fs traversal
• [FL-2502] Properly closing directory on free (#1174)
  • Storage: better (at least working) mechanism to distinguish between files and dirs
  • Storage API: debug log
  • TarArchive: fix stream memleak
  • TarArchive: fix another memleak
  • Storage: better logs
  • Storage: changed the log level to trace
• [FL-2269] Core2 OTA (#1144)
  • C2OTA: wip
  • Update Cube to 1.13.3
  • Fixed prio
  • Functional Core2 updater
  • Removed hardware CRC usage; code cleanup & linter fixes
  • Moved hardcoded stack params to copro.mk
  • Fixing CI bundling of core2 fw
  • Removed last traces of hardcoded radio stack
  • OB processing draft
  • Python scripts cleanup
  • Support for comments in ob data
  • Sacrificed SD card icon in favor of faster update. Waiting for Storage fix
  • Additional handling for OB mismatched values
  • Description for new furi_hal apis; spelling fixes
  • Rework of OB write, WIP
  • Properly restarting OB verification loop
  • Split update_task_workers.c
  • Checking OBs after enabling post-update mode
  • Moved OB verification before flashing
  • Removed ob.data for custom stacks
  • Fixed progress calculation for OB
  • Removed unnecessary OB mask cast
• NFC: fix memory corruption in nfc_worker_read_mifare_desfire (#1156)
  • NFC: fix memory corruption in nfc_worker_read_mifare_desfire
  • NFC: if the NFC tag doesn't have apps or files, don't try to save them.
  • NFC: make-format
• ci: Change GH-Actions comment to DFU download link (#1163)
  Change the GitHub Actions bot comment to directly point to the full
  firmware DFU download link.
  Include a pointer to the qFlipper documentation to guide folks towards
  installing the DFU file.
  The WebUSB flashing link can be restored in the future if it returns.
  See https://forum.flipperzero.one/t/no-database-found-after-firmware-update/1761/6
• BadUSB Speedup: set USB HID interval to 2ms (#1166)
• SubGhz: fix Princeton duration (#1159)

Ongoing

• Update from SD support in companion apps
• NFC Mifare classic emulation
• iButton improvements and refactoring
• RFID improvements and refactoring
• Storage improvements and refactoring