The final releases of Betafight 4.5.0 and Betaflight Configurator 10.10.0 were published earlier today. Details are at the links below.

• Betaflight 4.5 Firmware & Release Notes: https://github.com/betaflight/betaflight.../tag/4.5.0
  
• Betaflight Configurator 10.10.0: https://github.com/betaflight/betaflight...ag/10.10.0
  
• Betaflight TX LUA Scripts 1.7.0: https://github.com/betaflight/betaflight.../tag/1.7.0
  
• Blackbox Log Viewer 3.7.0: https://github.com/betaflight/blackbox-l.../tag/3.7.0
  
• Betaflight 4.5 Release Notes: https://betaflight.com/docs/wiki/release...ease-Notes
  

The same tuning notes apply to Betaflight 4.5 as per Betaflight 4.3 and can be found at the link below:

• Betaflight 4.3 Tuning Notes: https://betaflight.com/docs/wiki/tuning/...ning-Notes
  

For information regarding all the changes and fixes that were made during the Betaflight 4.5.0 release candidate phase, see another thread HERE.

Betaflight Development Team Wrote:Welcome to Betaflight Firmware 4.5.0

Thank you to all those who have contributed to this release, whether it be code or testing.

Release notes for 4.5.0 are here: https://betaflight.com/docs/wiki/release...ease-Notes

IMPORTANT: Make sure you install and use the latest version of the Betaflight Configurator (10.10.0) before updating your firmware.

Don't forget to check it out all the documentation on http://betaflight.com/.

What's Changed

Features

• OctoSPI and Memory Mapped Flash support by @hydra in #11825
  
• Angle and Horizon Mode improvements by @ctzsnooze in #12231
  
• Add rainbow effect to led strip by @ASDosjani in #12323
  
• Add GPS Lap Timer by @SpencerGraffunder in #11856
  
• RPM Limiter by @Tdogb in #12054
  
• Add (e)RPM field to blackbox logs by @tbolin in #12823
  
• Add support for IST8310 compass by @haslinghuis in #12917
  
• Adding OSD quick menu by @limonspb in #12977
  
• Added throttle flight statistics by @limonspb in #12978
  
• Add support for MSP2_SENSOR_GPS message from RemoteID module by @SteveCEvans in #13062
  
• STMicro LSM6DSV16X IMU support by @SteveCEvans in #13046
  
• Additional TPA breakpoint for low Throttle by @pichim in #13006
  
• STMicro LIS2MDL mag support by @SteveCEvans in #13150
  
• STMicro LPS22DF baro support by @SteveCEvans in #13054
  
• Throttlebased EzLanding by @tbolin in #12094
  

Improvements

• Default blackbox device to NONE on reset by @haslinghuis in #12221
  
• Cleanup make by @blckmn in #12179
  
• Add Octo X8 + to mixer defaults by @VirtualEnder in #12175
  
• Add GYRO_CALIBRATION debug mode by @SteveCEvans in #12241
  
• Enable retrieval of the BUILD_KEY using MSP2 by @blckmn in #12264
  
• Source file re-arrangement for better separation of MCU types by @blckmn in #12268
  
• ELRS - Simplify deferred ISR by @hydra in #12303
  
• NVIC - Update ELRS and SPI atomic_block usage to use appropriate priority levels. by @hydra in #12302
  
• add thrust_linear to blackbox header by @nerdCopter in #12337
  
• Method for adding defaults using defines for resources. by @blckmn in #12342
  
• Refactor GPS state_position by @haslinghuis in #12330
  
• Makefile Cleanup - further simplification of local building by @blckmn in #12354
  
• timerHardware removal - all targets use fullTimerHardware now. by @blckmn in #12349
  
• Simplified platform.h by @blckmn in #12355
  
• Adding additional MOTOR pin mappings for defaults by @blckmn in #12364
  
• Refactor I2C to use I2Cx_SCL_PIN and I2Cx_SDA_PIN by @blckmn in #12357
  
• Remove USE_SWDIO, simply refer to DEBUG by @blckmn in #12361
  
• Using SPI default pins by @blckmn in #12367
  
• To enable display of pin mapping for config.h by @blckmn in #12363
  
• Added SITL Gazebo by @ahcorde in #12346
  
• Move FLASH_PAGE_SIZE definition to CPU specific target.h files by @SteveCEvans in #12394
  
• Add CMS support on TX for ELRS by @SteveCEvans in #12308
  
• Auto generation of config.h from unified target repo by @blckmn in #12353
  
• REFACTOR: moving timer definitions to MCU locations. by @blckmn in #12397
  
• Enable cloud build features at runtime by @haslinghuis in #12388
  
• Removing Custom Defaults by @blckmn in #12425
  
• Rename ACC to ACC_REGS by @SteveCEvans in #12429
  
• AT32F435 BlackBox FLASH support by @SteveCEvans in #12431
  
• Rename MOSI and MISO to SDO and SDI by @haslinghuis in #12469
  
• Removing Brushed ESC auto detect by @blckmn in #12479
  
• Cleanup of USB drivers for AT32F4 by @blckmn in #12441
  
• AT32 initial dshot support by @JBKingdon in #12464
  
• FIX: If local config applied, do not include all drivers. by @blckmn in #12483
  
• Make dyn idle startup increase configurable by @tbolin in #12432
  
• FIX: SPI PIN defaults cleanup #2 by @blckmn in #12487
  
• Debug 8 columns by @bw1129 in #12445
  
• Remove SPEK1024 as the default RX (set to NONE) by @blckmn in #12500
  
• Rename FAKE to VIRTUAL by @TheIsotopes in #12493
  
• Add USB MSC support to AT32 by @SteveCEvans in #12481
  
• Set DSHOT default by @haslinghuis in #12508
  
• WORKFLOW: Adding call to create or update target list in API from config.h by @blckmn in #12540
  
• Remove getRcStickDeflection and areSticksInApModePosition by @ctzsnooze in #12198
  
• Update RSSI_DBM to include diversity antenna in OSD element (CRSF) by @haslinghuis in #12359
  
• gyro_init.c remove duplicate include line for icm20689.h by @nerdCopter in #12582
  
• Remove code comments using word retarded by @Quick-Flash in #12592
  
• More efficient PTn gain calculation by @KarateBrot in #12610
  
• Cleanup + led overlay expansion by @ASDosjani in #12554
  
• add getCoreTemp by @HThuren in #12608
  
• Add more info for sensor in (get) MSP_SENSOR_CONFIG by @HThuren in #12626
  
• Implement Stopwatch by @KarateBrot in #12623
  
• Make UBLOX models more configurable by @ASDosjani in #12587
  
• Obtain HSE_VALUE from config.h where provided. by @blckmn in #12632
  
• UBLOX Full Power mode + default STATIONARY model by @ASDosjani in #12659
  
• Optimise DSHOT cache management loops by @SteveCEvans in #12672
  
• Send motor data and then immediately decode prior telemetry data for bitbanged DSHOT by @SteveCEvans in #12685
  
• Lead-Lag Compensator by @KarateBrot in #12730
  
• Add GPS Status Line to CLI Status Output by @ZzyzxTek in #12769
  
• Minor pid.c refactoring by @ctzsnooze in #12722
  
• TPA optimisations by @ctzsnooze in #12721
  
• DShot bitbang decode - simple refactor by @ctzsnooze in #12688
  
• Allow custom H7 HSE freqs. Allow H7 HSI. Limit H723 speed to 520Mhz by @David-OConnor in #12291
  
• Add NMEA Custom commands by @ASDosjani in #12591
  
• Thrust linear code optimisations by @ctzsnooze in #12720
  
• Improve behaviour when GPS Rescue is initiated close to home by @ctzsnooze in #12715
  
• Removing Timer Usage Flags by @blckmn in #12862
  
• Enables retrieval of the RELEASE_NAME using MSP2 by @haslinghuis in #12878
  
• GPIO alternate function initialisation removal for HAL. by @blckmn in #12888
  
• Separate resources for SOFTSERIAL_TX & SOFTSERIAL_RX by @DieHertz in #11786
  
• IMU - increase gain on large Course over ground error by @ledvinap in #12792
  
• Refactor imuCalcKpGain by @ledvinap in #12859
  
• Add unfiltered gyro black box field by @tbolin in #12907
  
• add uart 6 and 7 by @freasy in #12928
  
• AT32F435 camera control by @freasy in #12913
  
• Add default port settings for serial port functions by @haslinghuis in #12986
  
• Use coloured fonts if supported by @SteveCEvans in #13005
  
• M10 ValSet support, GPS connection stability by @freasy in #12799
  
• Added dynamic expo factors to blackbox header by @pichim in #13004
  
• Add LED strip config values to MSP by @ASDosjani in #12995
  
• Add magnetic heading as debug and magnetic declination for the Mahony filter by @pichim in #13073
  
• rearrange rescue phase enum and keep Mag during landing by @ctzsnooze in #13072
  
• Dimmable RPM harmonics by @KarateBrot in #12838
  
• Remove back-and-forth float to int to float conversion in acceleration calculation by @tbolin in #13158
  
• Improved Magnetometer / Compass Bias Estimator by @pichim in #12998
  
• Make AT32 I2C accesses fully interrupt driven by @SteveCEvans in #13171
  
• Add OSD Link Quality alarm value to the MSP by @McGiverGim in #13121
  
• Add additional timers for AT32F4 by @blckmn in #12548
  
• Dshot RPM Telemetry Refactoring by @KarateBrot in #13012
  
• at32: add PA0/PA1 as i2c pins by @bkleiner in #13187
  
• Set serial duplex mode by @haslinghuis in #12909
  
• Encapsulate LSM6DSV16X driver specific macros by @KarateBrot in #13196
  
• Renamed tpa....lower to tpa_low_..., + tpa_low_always = OFF by default by @limonspb in #13206
  
• Make lookupTableThrottleLimitType an extern variable by @limonspb in #13204
  
• at32: add mux 3 for tmr9 on port c by @bkleiner in #13222
  
• Add gyro jitter analysis to DEBUG_SCHEDULER_DETERMINISM by @SteveCEvans in #13230
  
• Revive MSP message for mag declination by @haslinghuis in #13232
  
• Add hardware LPF1 options for lsm6dsv16x gyro by @SteveCEvans in #13234
  
• Revised LPF1+LPF2 filter cutoff bandwidths from STMicro by @SteveCEvans in #13239
  
• Do not permit MSP on softserial ports as the load on the CPU is too great by @SteveCEvans in #13303
  
• Use cpu_late_10ths_percent_limit to set limit on % of late tasks in 10th of a % by @SteveCEvans in #13330
  
• Log the standard deviation of gyro cycle time in SCHEDULER_DETERMINISM and TIMING_ACCURACY by @SteveCEvans in #13377
  
• Make servos great again (Servo range 500 - 2500) by @StNekroman in #13451
  
• Fix bmp388 spi (and add BMP390) by @ledvinap in #13458
  
• Extend build info with defined flags by @atomgomba in #13333
  
• Add support for SPL07_003 barometer - based on DPS310 by @haslinghuis in #13427
  
• Add resource for LPUART by @haslinghuis in #13306
  
• mag cal improvements by @ctzsnooze in #13487
  
• Barometer - remove unnecessary static variables by @ledvinap in #13496
  
• new flash added: py25q128ha by @freasy in #13516
  
• RX - minor optimizations/minor cleanup by @ledvinap in #13493
  

Fixes

• Fix gating for USE_ACC_SPI_MPU9250 by @haslinghuis in #12240
  
• Fix Bug causing Dynamic Idle to fail if RPM filtering is turned off by @ctzsnooze in #12270
  
• Fix max permissible CMS rows and up/down page arrows by @SteveCEvans in #12277
  
• SD - Use SDIO by default if target uses USE_SDCARD_SDIO. by @hydra in #12301
  
• Don't enable all flash chips by default on EXST targets. by @hydra in #12300
  
• Fix BMI160 accelerometer read in non-DMA SPI transfer by @SteveCEvans in #12338
  
• Fix blackboxdevice missing by @haslinghuis in #12324
  
• FIX: Flash status compilation error by @blckmn in #12360
  
• Enable SPI DMA receive before transmit on AT32 by @SteveCEvans in #12368
  
• FIX: Poor performance due to platform movements. by @blckmn in #12373
  
• Fix MPU6000 reset by @klutvott123 in #12371
  
• FIX: Several build issues following configuration changes by @blckmn in #12389
  
• FIX: Multi-gyro enabled but not configured at compile time. by @blckmn in #12404
  
• FIX: LED is zero based index (variance to resource command), ADC pins incorrectly mapped. by @blckmn in #12405
  
• FIX: Custom defaults - premature configuration by @blckmn in #12410
  
• FIX: Legacy drivers required for STM32F411DISCOVERY target by @blckmn in #12411
  
• increase FF smoothing max to suit elrs 1000hz link rate by @sugaarK in #12426
  
• FIX: Autogeneration of config.h inadvertently used PNONE instead of NONE by @blckmn in #12430
  
• H7 Fix frozen ADC values by @klutvott123 in #12439
  
• FIX: Multi gyro and SDIO hard fault by @blckmn in #12446
  
• FIX CONFIG: MATEKF405TEMINI SPI3 + CONFIG DEFAULT_VOLTAGE_METER_SCALE + SYSTEM_HSE_MHZ by @haslinghuis in #12468
  
• Improve GPS Rescue Pitch smoothing and disarming by @ctzsnooze in #12343
  
• added fake barometer sensor name to cli lookup table, fixes cli status crash for SITL by @AJ92 in #12474
  
• FIX: SPI Pins, and I2C pins should be configured in config.h by @blckmn in #12484
  
• FIX: RX SPI modules not correctly activating (incorrect CS pin definition) by @blckmn in #12482
  
• CONFIG: Fix SDCARD CS by @haslinghuis in #12488
  
• FIX: ESCSERIAL_PIN not mapped correctly by @blckmn in #12486
  
• FIX: CRSF no active serial port and telem causing hardfault by @blckmn in #12496
  
• Fix RX protocol config by @haslinghuis in #12497
  
• CONFIG: Fix blackbox by @haslinghuis in #12511
  
• Exclude MSP_OSD_CONFIG if USE_OSD not defined by @klutvott123 in #12513
  
• Revert 12302 NVIC SPI Priority by @ctzsnooze in #12505
  
• CONFIG: Fix VTX feature by @haslinghuis in #12512
  
• CONFIG: Add CAMERA_CONTROL if PIN defined by @haslinghuis in #12516
  
• Fixes #12521 Add separate AAF values for ICM-42605 by @tbolin in #12524
  
• FIX: IBUS telemetry by @haslinghuis in #12541
  
• Keep sending DShot 0 packets between beacon commands by @ctzsnooze in #12544
  
• Restore DShot Beacon control for 4.5 by @ctzsnooze in #12558
  
• Enable OSD feature if USE_OSD_SD or USE_OSD_HD is defined by @SteveCEvans in #12563
  
• Fix H7EXTREME by @haslinghuis in #12596
  
• If DSHOT telemetry is still being received, wait by @SteveCEvans in #12612
  
• Fix PG initialization of DMA defaults for TIMUP configuration by @blckmn in #12633
  
• Position: Remove 15 m/s limit on estimated vario by @mluessi in #12669
  
• Fix flash M25P16 ID with QUADSPI by @mluessi in #12670
  
• fix bootloader jump for g4 mcu by @freasy in #12675
  
• Fix missing cfg_pms.version by @SteveCEvans in #12695
  
• Fix Softserial by @haslinghuis in #12679
  
• Increment parameter group version of GPS config by @KarateBrot in #12681
  
• Fix handling of attribute byte by @SteveCEvans in #12701
  
• Refactor Feedforward Angle and RC Smoothing - mashup of 12578 and 12594 by @ctzsnooze in #12605
  
• Detect if no motor GPIO is specified during DSHOT intialisation by @SteveCEvans in #12745
  
• Tri-state USART TX output if load due to powered down peripheral is detected by @SteveCEvans in #12760
  
• If CS is asserted between transfers then consider bus to be busy for all but owning device by @SteveCEvans in #12604
  
• Converge IMU faster at higher groundspeed during GPS Rescue by @ctzsnooze in #12738
  
• Fix GNSS new data by @haslinghuis in #12725
  
• Fix bidirectional dshot on F7 by @haslinghuis in #12796
  
• fixes not working Ghost on F4xx by @TheIsotopes in #12809
  
• GPS Rescue Bugfix to ensure IMU adaptation to GPS course over ground by @ctzsnooze in #12789
  
• Handle invalid baro pressure values by @haslinghuis in #12815
  
• GPS rescue IMU adaptation 0.2 by @ctzsnooze in #12841
  
• Fix wrong test for BOXMSPOVERRIDE channel by @ledvinap in #12857
  
• Call updateInit() before writing motor command data by @SteveCEvans in #12865
  
• Fix MAG redefines by @haslinghuis in #12882
  
• G4 LPUART rework by @DieHertz in #11821
  
• fix led strip for h7 by @freasy in #12890
  
• Fix g force calculation by @Schuwi in #12892
  
• Fix rcSmoothing warning beeper by @haslinghuis in #12893
  
• Fix rcSmoothing warning OSD by @haslinghuis in #12898
  
• Platform target evaluation fix by @ASDosjani in #12904
  
• Fix Serial USB COM port by @freasy in #12911
  
• Handle USART TX pulldown by @SteveCEvans in #12929
  
• GPS rescue IMU, velocity iTerm and other fixes by @ctzsnooze in #12900
  
• Revert 12577 change for F4 by @haslinghuis in #12969
  
• Rename flight mode by @haslinghuis in #12983
  
• Fix MSP_DISPLAYPORT_UART assignment by @SteveCEvans in #13000
  
• Remove cs lock device by @SteveCEvans in #12999
  
• Fix escserial for HAL targets. by @hydra in #12992
  
• Fix: disable sag compensation if RPM limit is active by @limonspb in #12918
  
• Enable/disable the UART TX before changing the TX pin mode by @SteveCEvans in #13017
  
• UART enable disable f4 by @SteveCEvans in #13019
  
• Allow for F7 UART idle preamble to be sent on startup by @SteveCEvans in #13021
  
• AT32F43x: make sure the SRAM configuration is valid by @cruwaller in #13031
  
• Fix MAX7456 clock configuration by @haslinghuis in #13030
  
• Fix AT32 UART 7 and 8 by @haslinghuis in #13027
  
• Fix debug_gps_altitude values by @ctzsnooze in #12803
  
• Fix OSD VTX band/channel info when direct frequency is used by @cruwaller in #13032
  
• Fix GPS Rescue parameters confusion by @haslinghuis in #13047
  
• Only allow arming when valid Rx signals are received by @ctzsnooze in #13033
  
• GPS Lap Timer: Fix best 3 not being calculated by @SpencerGraffunder in #13065
  
• Remove dshot_telemetry_start_margin setting and auto-tune instead by @SteveCEvans in #13075
  
• Fix circling behaviour during GPS Rescue descent phase by @ctzsnooze in #13091
  
• Fix missing target define by @haslinghuis in #13078
  
• Fix marking of softserial port usage by @SteveCEvans in #13097
  
• fix ARTERY UART4 pin 'PH2&PH3' by @BAYCKRC in #13108
  
• Removed SITL hardcoded state port number by @JacopoPan in #13117
  
• Fix buffer overflow in JETIEXBUS character reception by @SteveCEvans in #13130
  
• Disable ICM426XX AFSR feature to prevent stalls by @SteveCEvans in #13132
  
• Check tx on MSP and GPS only by @SteveCEvans in #13100
  
• Remove Special Chars from eRPM Blackbox Field by @KarateBrot in #13123
  
• Fix compass loop time by @SteveCEvans in #13125
  
• Update esc_sensor.h to support higher esc telemetry voltage display by @AlexRice13 in #13115
  
• Increase PG version for rpm_filter by @haslinghuis in #13172
  
• Fix Dshot telemetry by @haslinghuis in #13140
  
• Mag scheduling improvements by @ctzsnooze in #13166
  
• Fix disabling sensor configuration (when device needs battery power) by @haslinghuis in #13177
  
• Fix: ledstrip vtx freq based color selection in RACE mode by @cruwaller in #13096
  
• Fix default PID DENOM by @haslinghuis in #12509
  
• Allow CRSF RX binding via cli by @Auster in #13119
  
• Fixed incorrect accelerometer scaling in MSP by @flaviopinzarrone in #13026
  
• Fix #12908 Add ICM-42688-P IMU to list of IMUs with overflow protection by @tbolin in #13013
  
• Keep I-terms at zero throttle for fixed wings by @limonspb in #13127
  
• Add RPM Limiter to baseline build by @KarateBrot in #13190
  
• Fix # 12991 Change LSM6DSO gyro scaling to 70 mdps/LSB by @tbolin in #13014
  
• Add LPS22DF to core build by @KarateBrot in #13197
  
• Add ICM-42605 to list of gyros with overflow protection by @tbolin in #13194
  
• Rpm limiter initial throttle cap prediction fix by @Tdogb in #13039
  
• fix iterm bug introduced in PR13127 by @ctzsnooze in #13201
  
• Fix OSD Quick Menu by @haslinghuis in #13211
  
• Fix jumpy baro debug by @haslinghuis in #13217
  
• Fix: RPM Limit - reset I-term at arm by @limonspb in #13214
  
• Break LED_STRIP update into 20us chunks by @SteveCEvans in #13218
  
• Added d_min for PID osd elements by @limonspb in #13227
  
• Remove custom defaults and enable features on boot by @haslinghuis in #13216
  
• Fix dma pin list by @SteveCEvans in #13233
  
• Change MAX7456 AUTO default to PAL by @haslinghuis in #13235
  
• Fix builds when PWM motor protocol is used by @haslinghuis in #13236
  
• Add MSP request for UBLOX SatInfo and disable SatInfo on ARMING. by @haslinghuis in #13240
  
• Fix arming when GPS included in build but no active GNSS device attached + revert msp request for SatInfo by @haslinghuis in #13244
  
• Led task optimistion by @SteveCEvans in #13247
  
• Fix BMI160 gate, improve MPU6500 initialization and optimize directives for maintenance by @haslinghuis in #13237
  
• Increasing frequency of MSP protocol in SITL by @Tuxliri in #13253
  
• Fix missing GPS PG parameter by @haslinghuis in #13248
  
• Fix CLI command "bind_rx" for CRSF by @KarateBrot in #13267
  
• Scale heading appropriately by @SteveCEvans in #13269
  
• Add timeout to serial four way interface for ESC programming by @SteveCEvans in #13277
  
• Fix F7X2 AXIM flash region by @haslinghuis in #13270
  
• Rename USE_QUICK_OSD_MENU by @haslinghuis in #13273
  
• Fix ESC-Sensor RPM by @haslinghuis in #13286
  
• BLHeliSuite32 holds 4wayif code in indefinite loop waiting for ESC so remove timeout by @SteveCEvans in #13287
  
• Make high rate IMU DcmKp change relative to user value by @ctzsnooze in #13304
  
• Fix OSD defaults based on SD/HD by @SteveCEvans in #13320
  
• Enable PINIO if PIN defined in config by @haslinghuis in #13315
  
• Do not return MSP_RESULT_ERROR when succesful by @haslinghuis in #13328
  
• Ensure MSP channel data is valid by @SteveCEvans in #13352
  
• Voltage detection method by @freasy in #13350
  
• Allow overriding the spi clock speed for icm42688 by @JBKingdon in #13346
  
• TPA_LOW tidy up by @limonspb in #13337
  
• Use fixed LED color table in RACE / BEACON LED profiles by @CapnBry in #13339
  
• Naming LED Strip overlay rates by @ASDosjani in #13363
  
• Update SERIALRX_PROVIDER default by @haslinghuis in #13371
  
• Spektrum telemetry minor fix to address false Fastboot alerts on radios with latest update by @SpektrumRC in #13383
  
• Increase ez_landing_limit default to 15 (was 5) by @tbolin in #13375
  
• Fix Galileo toggling by @haslinghuis in #13384
  
• Fix timer interval for battery and RSSI LED indication by @SteveCEvans in #13412
  
• Do not go into failsafe when the correct roll/pitch/yaw/throttle are sent via MSP_OVERRIDE by @yrik in #13380
  
• Fix space in status output when gps version is unknown by @haslinghuis in #13423
  
• Fix code style by @haslinghuis in #13429
  
• Fix OSD task timing when using MSP by @SteveCEvans in #13388
  
• Include a target's config.h before common_pre.h by @hydra in #13439
  
• Fix rx spi processing required by @ledvinap in #13454
  
• In GPS Rescue current altitude mode, ensure that return height is not less than climb height by @ctzsnooze in #13276
  
• Fix #13452 Write gps altitude to blackbox as signed value (was unsigned) by @tbolin in #13453
  
• Render spec screen over normal OSD by @SteveCEvans in #13460
  
• Use intptr_t for casting void * to an integer by @SteveCEvans in #13463
  
• Fix qmc5883l lockup by @ledvinap in #13467
  
• Improve IMU responsiveness, refactor by @ctzsnooze in #13373
  
• Add ez_landing_speed parameter by @tbolin in #13411
  
• Use PDOP consistently, since it replaces HDOP by @ctzsnooze in #13477
  
• Fix config write by @ledvinap in #13503
  
• Blackbox - use llog2 instead of LOG2 by @ledvinap in #13495
  
• Baro and Mag driver check for I2C bus being busy by @SteveCEvans in #13509
  
• Fix for ITCM overflow for F722 by @blckmn in #13521
  
• hmc5883l - fix wrong register value by @ledvinap in #13537
  
• STM32H725 - fix USE_SOFTSERIAL by @ledvinap in #13546
  
• Fix setting pid denom by @haslinghuis in #13535
  
• Make w25n01g FLASH driver non-blocking for SPI by @SteveCEvans in #13555
  
• Fix debug mode DEBUG_ATTITUDE by @KarateBrot in #13570
  
• Nonblocking w25n01g code tidy up by @SteveCEvans in #13562
  
• Remove functionality to enter flash bootloader by sending 'F' on a UART configued for MSP. by @hydra in #13572
  
• Fix smartport over softserial using override by @haslinghuis in #13540
  
• Fix W25N01G lockup when using QUAD/OCTO SPI by @haslinghuis in #13584
  
• Use the cached value of useDshotTelemetry to ensure consistent runtime use if dshot_bidir is changed by @SteveCEvans in #13589
  

Targets

• See official release notes HERE.
  

Known Issues

• BF - Fix QuadSPI include paths. by @hydra in #12298
  

Full Changelog: 4.4.3...4.5.0

Below are a selection of useful articles and videos related to Betaflight 4.5 from some of the more prominent FPV influencers...


Oscar Liang

Blog Article: https://oscarliang.com/betaflight-4-5


Joshua Bardwell












UAV Tech










Chris Rosser










Pawel Spychalski






Drainman FPV






PIDtoolbox

4.5 breaks ESC comms between my JHEMCU Gof722 fc and ruibet 45a esc. Not sure of the change that broke it, but rollong back one release fixed it.

One hell of a day tracking the issue after flashing, seems to be on the other end. Again.

Is the ruibet a blheli32 esc? I've noticed issues as well with BF passthrough with blheli32 escs. I had to drop to 4.4.x to get the comms working again. I've found with 4.5 stable release that it worked again but it could be a particular set of circumstances that made it work versus yours.

A new version of Blackbox Log Viewer (3.7.0) was released a few days ago to support the changes made in Betaflight 4.5.0. Details are below.

Release Notes & Downloads: https://github.com/betaflight/blackbox-l.../tag/3.7.0

Quote:This update of Blackbox Log Viewer adds support for logs written by the latest version of the Betaflight firmware (4.5).

We have tried to make this release as bug free as possible. If you still find a bug, please report it back to us by opening an issue here.

If you want to talk about Betaflight, ask configuration questions, or just hang out with fellow pilots, you can do this in our Facebook group.

Betaflight also has a presence with Discord. Register here. Most developers hang out there, so this is a great place to talk about the things you are tinkering with in Betaflight, or get help.

What's Changed

Improvements

• Update GPS Rescue Altitude, Heading and Tracking, and Altitude, Baro and RTH debugs by @ctzsnooze in #593
  
• Update Baro debug by @haslinghuis in #604
  
• Add GPS DOP debug by @haslinghuis in #605
  
• Allow for GPS Data in Table/Graph/Exports by @LinusThorsell in #606
  
• Added map with home position / craft position / flight trail #490 by @bonchan in #613
  
• Make measurement system units changeable. by @LinusThorsell in #616
  
• Added GPX exporter by @bonchan in #614
  
• Add support for Omron 2SMBP-02B barometer by @haslinghuis in #622
  
• Add FAILSAFE and GYRO_CALIBRATION debug modes by @haslinghuis in #626
  
• Plot 8 columns of debug data by @bw1129 in #631
  
• Seekbar more metrics by @VolkerGoeschl in #635
  
• add motor_poles to header render by @nerdCopter in #647
  
• Added dynamic expo factors, see bf PR #13004 by @pichim in #650
  
• Toggle trace/field visibility by @atomgomba in #664
  
• Remove special charachters from eRPM field by @tbolin in #666
  
• Add simple stats table by @atomgomba in #661
  
• Add a RPM vs frequency spectrum plot by @tbolin in #668
  
• Added thrust_linear by @pichim in #670
  
• Add missing debugs by @haslinghuis in #671
  
• Added tpa lower parameters to header by @pichim in #657
  
• Add LSM6DSV16X by @haslinghuis in #675
  
• Add EZLANDING debug by @haslinghuis in #676
  
• Bump NWJS and FFmpeg to 0.83 by @haslinghuis in #687
  
• Scale and display EZLANDING debug fields as percentages by @tbolin in #712
  
• Added warning at the status bar while actual log rate is less then required by @demvlad in #715
  
• Add EZLANDING speed parameter debug fields by @tbolin in #719
  
• Web build of blackbox explorer by @chmelevskij in #697
  
• feat: add offline pwa files by @chmelevskij in #722
  

Fixes

• Fix heading offset by @ctzsnooze in #600
  
• Update hardware and debug fields by @haslinghuis in #603
  
• Update debug mode by @haslinghuis in #607
  
• Fix debug modes by @haslinghuis in #609
  
• fixed NaN validation, add no-gps-data class to map by @bonchan in #618
  
• Bugfix: chrome.fileSystem.chooseEntry now requires "description" by @danniesim in #636
  
• fix dynThrPID to tpa_rate changes by @nerdCopter in #649
  
• header fixes for antigravity by @nerdCopter in #655
  
• Fixed msp accel scaling in flightlog parser by @flaviopinzarrone in #651
  
• Set gyro_sample graph scaling to the same as other gyro graphs by @ctzsnooze in #700
  
• Fix order by @haslinghuis in #702
  
• Header: fix voltage scale by @nerdCopter in #714
  
• Resolved issue of wrong throttle values at spectrum chart when not all log parameters are selected in blackbox settings by @demvlad in #713
  

Full Changelog: 3.6.0...3.7.0