MarlinFirmware/Marlin 2.0.8 on GitHub

New Features

Tool sensors (#17239)
Z Probe Offset Wizard (#18866, #19647, #19742, #20167, #20239, #20344, #20414, #20439)
G34 Mechanical Gantry Calibration (like Prusa M915) (#18972)
Swedish language for MarlinUI (#20826)
Custom move feedrate for G26 (#20879)
Chamber servo vent, auto fan (#19519, #21594)
Support for Debug Codes - Dnnn (#19225, #19697)
REPORT_TRAMMING_MM option (#19682)
Power-on/off G-code options (#19837)
SPINDLE_SERVO option (#19971)
POWER_OFF_DELAY option (#19987)
ASSISTED_TRAMMING_WAIT_POSITION (#20063)
HOME_Z_FIRST option (#20113)
SMUFF (MMU2 clone) support (#19912)
Allow cold Filament Load/Unload with M302 P1 (#20262)
Level Corners with Probe option (#20241)
M808 Repeat Markers / "End Repeat Loops" menu item (#20084)
Make M220 B / R parameters standard (#20355)
Probe Tare, Probe Activation Switch (#20379, #20550)
Laser Test Fire (#20452)
NO_SD_DETECT option (#20741)
“MeatPack” (OctoPrint plugin) serial encoding (#20802, #20893, #20896, #20903, #21306, #21336)
STM32 Shared Media - USB Mass Storage Device (#20956)
Postmortem Debugging to serial port (#20492)
Chamber Heater PID (#21156)
PROBING_HEATERS_OFF sub-option WAIT_FOR_HOTEND (#20835)
Preheat Menu shortcut option (#20350)
RGB Caselight (#20341)
Filament Runout handling for Mixing Extruder (#20327)
G-code Digital Buttons (#18389, #21284)
Cooler (for Laser) - M143, M193 (#21255)
Add M207/8/9 reporting (#21335)
Custom menu items confirm option (#21338)
TPARA - 3DOF robot arm IK (#21005, #21248)
Hilbert space-filling curve for UBL / G26 (#21387, #21453, #21480)
Extend M106/M107 for better laser module support (#16082)
Laser Coolant Flow Meter / Safety Shutdown (#21431, #21498, #21573)
Multi-Volume. Select Media for LVGL (#21344)
Realtime Reporting, S000, P000, R000 (#19330, #21630)
M10-M11 Air Evacuation for Spindle/Laser (#21668)
Soft Reset via Serial or post-kill button click (#21652)
Backlash Compensation for COREnn (#21612, #21731)
Stepper Driver Anti-Reverse Protection (#21503)

New Machines and Boards

Anet ET4 / ET4P and Anet TFT28 / TFT35 (#20280)
BigTreeTech E3 RRF
BigTreeTech SKR CR6 (#20522)
BigTreeTech SKR Mini MZ V1 (#19818, #20069)
BigTreeTech SKR V2.0 (#21503, #21717, #21741)
BigTreeTech SKR-SE-BX (STM32H743IIT6 ARM Cortex M7) and BIQU_BX_TFT70 (#21536)
Creality v4.2.10 board (#20647)
Creality v4.3.1 (Ender 6) board (#20512)
Creality v4.5.2 (#20378)
Creality v4.5.3 (CR-6 SE, CR-6 MAX) (#20468)
Eryone Thinker V2 (#21190)
FLSUN Delta QQS-Pro (#19793)
FLY CDY (#19979)
FLY MINI (#19185)
FYSETC Cheetah 2.0 (#20897)
FYSETC E4 (#20032)
FYSETC Spider (#21458)
KRATOS32 / K.32 board and LCD controllers (#21334)
Longer LK Pro / Alfawise PRO (#20185, #20372)
MKS Robin E3 / E3D v1.1 (#20216)
MPX_ARM_MINI board (Mingda MD-16) (#20711)
NUCLEO-F767ZI dev board (#19373)
Ramps-S v1.2 (#19815)
SMART RAMPS 1.4 with Mega2560 (#21059, #21128)
Zonestar Z8 XM2 (#19991)

Configuration Updates

Ensure A4988 for unspecified driver type (#19798)
Allow MAX31865 resistance values configuration (#19695)
TFT Presets, Generic options, Sanity checks (#19723)
Default LASER_POWER_INLINE to OFF (#19727)
Distinct Chopper Timing settings (#19781, #19850)
Longer3D: LONGER_LK_TFT28 now set by config (#19817)
Configure TMC interpolation per driver (#19828)
Guards for large BLOCK_BUFFER_SIZE (>=128) (#20130)
Allow dummy thermistors without pin definitions (#20159, #20247)
Add Thermistor 20-21 notes (#19246)
Permit touch calibration override
Optional M42/M226; Add more features filters (#19664)
Option to prevent (extra) Watchdog init on STM32 (#19693)
Sanity-check mutually-exclusive G34 features (#19706)
Add HAS_MEDIA_SUBCALLS to enable/disable M32
Option to ignore SD at startup (#20099)
Option to open the File Browser on Media Insert (#20151)
Use MANUAL_PROBE_START_Z for UBL manual probing (#20160)
Proper pullup/pulldown configurability (#20242)
No Z_MULTI_ENDSTOPS when HOMING_Z_WITH_PROBE (#20254)
Group related homing options (#20283)
Leveling Fade Height default setting (#20316)
Clarify Delta & SCARA config location (#20403)
Clarify "not Interrupt-capable" error message (#20419)
Add Z_SENSORLESS sanity checks (#20421, #20438)
SHORT_MANUAL_Z_MOVE is now FINE_MANUAL_MOVE
Option to always enable leveling after G28
Minimum temp options for Probing and G12 Nozzle Clean (#20383)
Improve STM32 timer conflict messages (#20544)
Add OPTIMIZED_MESH_STORAGE option (for UBL) (#20371)
Validate defined probe points (#20572)
Allow define of HOMING_FEEDRATE_(XY|Z)
Apply SHOW_BOOTSCREEN to TFT_COLOR_UI (#20586)
Clarify sanity-check for custom status bitmap (#20588)
Adjustable precision in M105 temperature report (#20602, #20687)
Multi-Z stepper inverting (#20678)
Configurable Corner Leveling point order (#20733)
USE_M73_REMAINING_TIME sanity-check (#20751)
Configure / disable PRINTCOUNTER save interval (#20856)
Configure / disable PRINTCOUNTER save interval (#20856)
Touch Calibration Screen auto-save option (#20971)
Allow Zero Endstops (e.g., for CNC) (#21120, #21188)
Combine Z_AFTER_DEACTIVATE with UNKNOWN_Z_NO_RAISE (#20444)
Renamed some "SPEED" options as "FEEDRATE" (#21217)
Default microsteps to axis first stepper (#21230)
Safe Z homing for Power Loss Recovery (#16909)
Extend Heater Overshoot Options (#21273)
Undef unused 2nd serial option(s) (#21331)
Sanity-checks for NOZZLE_CLEAN_FEATURE (#21332)
Main / Config Custom Submenus (#18177)
Better chopper defaults
More detailed serial config error
Sanity check MIXING_EXTRUDER + DISTINCT_E_FACTORS (#21689)
Make Cancel Objects reporting optional (#21698)

Optimized / Improved

Fix various errors, warnings in example config builds (#19686)
Add loose soft endstop state, apply to UBL fine-tune (#19681)
If needed, home before G34 (#19713)
Handle M410 in the main task (#19752)
Fix Color UI external_control, wait_for_release (#19771)
Fix HAL/STM32 FastIO for analog pins (#19735)
Fix G35 PROGMEM strings (#19926)
Handle UTF in long filenames (#20087, #20115, #20121, #20135)
G34 Z stepper locking (#20091)
Optimize M360
Update IDEX menus, add post-M605 event G-code (#20133)
Reduce RAM usage for TFT Color UI on SGen-L (#20179)
Abort print on media removal (#20200)
Skip unnecessary (costly) SW Stepper Enable (#20218)
Allow Status Message without LCD (#20246)
Optimize emergency parser check
On pause release the extruder for easier filament change (#20346)
Fix, improve Tramming Wizard behavior (#20437, #20796)
MAX Thermocouples rework (#20447)
Support RGBW on PCA9632 (#20455)
Preheat before Power Loss Recovery homing (#20697)
Support up to 6 Tramming points (#20720, #21646)
Init KILL, SUICIDE, PSU earlier (#20810)
Init serial ports first (#20944)
Improve probe preheat behavior (#21033)
Use 'H' value for UBL G29 z-clearance (#21114)
Fix and improve G-code queue (#21122)
Pause SD queue early on M25 (#21317)
Add reporting to M207/8/9 (#21335)
Optimize MarlinSettings with template methods (#21426)
Optimize LSF for size, efficiency (#21443)
Optimize BLTouch code for size (#21477)
Generalize MMU (#21469)
Move last bootscreen delay to end of setup (#21665)
Use temp_info_t for temp_redundant (#21715)

Board / HAL Updates

Retire HAL for STM32F4 / F7 (#20153)
Improved MKS Robin support (#19333)
Minor SPI fixes, systick_callback for STM32F1 HAL compatibility (#19565)
Update MKS SGen-L V2 RGB LED pins (#19762)
Teensy 4.1 Ethernet support (#19801, #21316)
Ignore NativeEthernet on AT90USB1286 (#19885)
AZTEEG X5 mini LED pins (#19909)
Generalize BTT SKR E3-DIP version (#19910)
Rename, adjust Dagoma F5 (#19947)
FAST_PWM for STM32F1 (#19952)
FAST_PWM for STM32 (#20025)
Get STM32 clock rates from framework (#19978)
HAL support for 8s watchdog
Standardize Marlin SPI (#19989)
STM32F1 cleanup, incl. SoftwareSerial removal (#20046)
BTT SKR driver expansion board (#20088, #20123)
Allow overriding servo pin for MKS Robin Mini (#20158)
FLSun Hispeedv1 Board update (#19959)
Migrate Hispeedv1 (QQS-Pro) to HAL/STM32 (#20354)
Use RTD for MAX31865 reading (#20188)
Add BTN_ENC_EN for many boards (#19796, #19890, #20684)
SKR E3 Turbo Controller Fan (#20320)
Permit SD EEPROM emulation on Ender-3 V2 (#20353)
Suspend Servos for STM32+NeoPixel (#19963)
SPI TFT for STM32F4 boards (#20384)
MKS Robin Pins fixes for STM32 and STM32F1 (#20404)
Add HAS_PIN_27_BOARD for CREALITY_V4 (#20446)
MKS Robin Nano V3 and STM32F4x0Vx Variant (#20430, #21174, #21238)
Let boards set Default TMC Slave Addresses (#20498)
12-bit ADC resolution for STM32 (#20519, #20562)
Overrides to prevent STM32 timer conflicts (#20545)
Unify FYSETC F6 1.3 / 1.4 (#20507)
Better defaults, compatibility for SDIO + STM32 (#20570, #21440)
USB Flash Drive via native USB Host + MSC (#20571)
Prefix SD SPI pins (SCK, MISO, MOSI, SS) (#20606)
Define SANGUINOLOLU 1.1 enable pins (#20682)
Wanhao One+ SD Detect pin (#20724)
ESP32 Tone Generator (#20704)
NEOPIXEL overridable on BTT SKR (#20797)
FYSETC_242 OLED 12864 for S6 (#20767)
Lerdge K/S/X support for Flash Drive (#20593)
Add labels, condition for BTT GTR M5 pins (#20772)
Updated display timing for SKR Pro (#21346)
ZONESTAR_LCD warning for RAMPS / ReARM (#20702)
Refactor serial class with templates (#20783, #21249, #21287, #21318)
Allow SERVO0_PIN override on Creality Melzi (#21007)
EXP headers for RAMPS 1.x (#21054)
Trigorilla Pro: Allow for swapped Z-stops
Add BOARD_PREINIT (for Longer3D open drain pins) (#21159)
Lerdge-K TMC 2208/9 UART pins (#21299)
Lerdge-X I²C EEPROM pins, size (#21322)
Update display timing for SKR Pro (#21346)
Update Anet V1.0 display timing (#21425)
GT2560 Rev.A Plus Z Max Pin with BLTouch (#21375, #21512)
Board IDs for G2560 Rev B, G2560 v4, GTM32 VD (#21499)
EXP2_01_PIN for BTT BTT002 1.0
Changes supporting "Prussia3D" MK3 (#21617)
MCP4451 Digipot Support for Azteeg X5 GT (#21680)

Board / HAL Fixes

Fix onboard SD card support for Teensy 3.6 & 4.1 (#19593)
Fix TEMP_ADC_PROBE support for STM32F1 (#19582)
Fix Archim1 stepper timing (with new variant) (#19596)
Fix HAL/STM32 FastIO for analog pins (#19735)
Fix Smoothieboard digipots i2c pin (#19784)
Fix TMC serial port for FYSETC AIO_II (#19842)
Fix BTT002 PeripheralPins PWM assignments (#20036)
Fix E4d@box pins, stepper i2s (#20055)
Fix FYSETC S6 timer conflict (#20044)
Fix FYSETC S6 I2C EEPROM size (#20340)
Fix FYSETC_S6 heaters pins (#21483)
Fix SKR E3 DIP pin CLCD_SPI_CS (#20078)
Fix GTR NeoPixel pin with FYSETC Mini12864 (#20203)
Fix BTT GTR 1.0 endstop/DIAG pins (#20296)
Fix and optimize MightyBoard (#20493)
Fix Creality EEPROM watchdog freq. (#20510)
Fix TMC220x short circuit (#20731)
Fix Trigorilla Pro STOP pins (#20801)
Fix ESP32 I2S init placement (#21019)
Fix mini12864 v2.1 + PSU control + NeoPixel backlight (#21021)
Fix STM32F1 emergency parser (#21011)
SAMD51: Respect serial buffer size (#21194)
Fix SKR E3 Mini V2.0 Fan Bug (#21079)
Fix and add STM32 SDIO DMA (#21476)
Add E1 pins for RAMPS 1.4.4 / AGC
Fix Grand Central SD dependency (#21660)

New LCDs / Controllers

Two additional EVE displays (#18839)
Support 4.3" (480x272) Color UI display (#20334)
LVGL and Classic UI for STM32 (#20552)
MKS H43 controller (#20609, #21240, #21267, #21388, #21485, #21500, #21511, #21619)
Nextion TFT touch screen (#21324)
New-style Anycubic Chiron TFT (#21597)

New LCD / Controller Features

Add Touch Calibration screen (#20049, #20454, #20524)
"Sound: ON/OFF" menu item (#19901)
Fysetc Mini 12864 + GT2560 A(+) (#19878)
Multi-platform DWIN_CREALITY_LCD support (#20738)
Touch UI support for X2, Y2 and Z2 (#19538)
Implement wait_for_user for Color UI (#19694)
ANET_FULL_GRAPHICS_LCD_ALT_WIRING for SKR 1.4 (#20011, #20427)
Anet 1.0 alternative graphical LCD wiring (#20022)
Color UI single touch menu navigation (#20053)
Tramming Wizard submenu option (#20000)
COLOR_UI without TOUCH_SCREEN 👍🏻 (#20178, #20269)
Remaining Time for Prusa-style LCD layout (#20148)
TFTGLCD support for STM32F1xx (#20515)
Small / Large Bootscreen option for TFT_COLOR_UI (#20578)
LVGL G-code preview (#20589, #20564)
MKS WiFi for TFT_LVGL_UI (#20191)
LVGL UI G-code console (#20755)
LVGL "more" menu (#20940, #21004)
Mesh Editor for FTDI Eve Touch UI (#21381)
MKS LVGL UI: Display/edit fan percentage (#21544)
E3V2 DWIN Advanced Settings menu (#21534, #21700)
Color UI Move Screen for 320x240 TFT (#21708)

LCD / Controller Updates

Update French language (#20472)
Update Hungarian language (#20996, #21266, #21407)
Update Italian language (#19654, #19953, #20480, #20551, #20663, #20789, #21537)
Update Russian (#20508, #20529)
Update Ukrainian (#20508, #20668)
Update Slovak language (#19561, #20181, #21224)
Add Spanish translations (#20020)
TFT Refactoring (#19192)
Provide FYSETC F6 v1.3 LCD pins for HD44780 (#19769)
Color UI for MKS SGen-L V2 (#19919, #20209)
Color UI circular task queue (#19918)
Reset calibration screen touch timer on click (#19951)
Y-center GLCD status logo, reorganize (#19954)
Increase SPI Speed on LPC. Color and Classic UI for MKS SGEN L. (#19945)
Show un-mounted media slot (#20005)
Better Classic UI touch resolution (#20004)
Use status bitmaps based on LCD_FIRST_TOOL
Better edit range for Linear Advance K (#20155)
Reapply superscript substitution (#20219)
Clear menu history for browse media on insert (#20236)
Display position on LCD in current units (#20145)
Set “lcd_move_e” index to fix the label (#20263)
Shorter Filament Load/Unload Strings to fit Graphical Display (#20369)
Allow BTT EXP-MOT be used with 10-pin (EXP1) displays (#20396)
Move ExtUI ABL mesh edit, limit to bilinear (#20381)
Cutter Power in percent format (#20410)
Legacy MKS WiFi Cura plugin compatibility (#20589)
Assisted Tramming improvements (#20298)
4 / 5 digits for some edit items (#20793)
Color UI Multi-language support (#20725, #20915, #20972)
Increase filament runout distance edit limit (#20828)
lcd_put_wchar_max for COLOR_UI (#20838)
ZONESTAR_LCD warning for RAMPS / ReARM (#20702)
Graphical TFT fixes, cleanup (#20861)
KILL, BEEPER pins for LCD_FOR_MELZI (#20924)
Refresh screen on M22 (detach) (#20958)
Re-calibrate touch after EEPROM reset, if needed (#20934)
Fix and extend FTDI EVE Touch UI (#20393, #20466, #20517, #20518, #20532, #20549, #20987, #21232, #21148, #21167, #21487, #21607)
Ender 3 V2 display improvements (#20983, #21072, #21369, #21035)
Support for FYSETC mini12864 with BTT002 (#21096)
Support for YHCB2004 with GT2560 v4.1B (#21091, #21111, 21450, #21472)
Clean up, optimize ExtUI/TFT code (#21333)
MKS UI: Monitor state when idle (#21452)
Update u8g / AVR display timing defaults (#21518)
Touch UI Bed Mesh Screen refactor, enhancements (#21521)
Delay U8glib init using U8glib-HAL 0.4.4 (#21496)
Space-separate scrolling Status Message (#21523)
ExtUI::onPostprocessSettings (#21683)

LCD / Controller Fixes

Fix Move Screen with disabled Touch (#19558)
Restore ° (degree symbol) to 6x9 small info font (#19645)
Fix screen click reading too often (#19696)
Fix Anycubic i3 Mega target temperature display (#19572)
Fix German translation purging/unloading (#19615)
Use LiquidCrystal_I2C@1.1.4 for RA_CONTROL_PANEL (#19875)
Fix Tune/Fan edit items
Fix "autotune" LCD message (#20127)
Fix and improve Ender-3 V2 (#19642, #20324, #20338, #20352, #20443, #20526, #20837, #21272)
Fixes for TFTGLCD Panel, FastIO (#19614)
Fix UTF8 handling for Color UI (#19708)
Fix and optimize MKS UI (#19869, #20813)
Fix some LVGL bugs (#19900, #19904, #20214)
Fix 320x240 touch buttons Y (#20079)
Fix Filament Change menu items (#20201, #20565)
FIX TMC menu message (#20294)
Fix “back” location for Level Bed Corners
Fix Spindle/Laser Control menu (#20347)
Fix ZoneStar LCD 2004 buttons (#20489)
Fix DOGM status message scrolling (#20557)
Fix ST7920 timing for Rumba32, Fysetc S6 (#20556)
Fix Menu Mixer for Color UI (#20566)
Fix SD SPI Speed override, FTDI mesh edit (#20657)
Fixes for TFTGLCD (#20734)
Fix Anycubic Chiron TFT issues (#20807, #21152, #21183)
Fix Ender 3 V2 unwanted E motion on manual moves (#20806)
Fix MKS SGen-L with FYSETC_MINI_12864 LCD (#20998)
Fix AZSMZ_12864 on SMART RAMPS (#21056)
Fix MKS LVGL UI Main screen / buttons / icons (#21468, #21595)

Serial / Host Updates

G35 workaround for Pronterface "feature" (#19577)
Fix M503 output for M907 motor current (#19777)
Fresh Web GUI (based on bootstrap.js) (#19812)
Help hosts when Marlin is password-locked (#20348)
Fix "//action" prefix (#20600)
Fix M48 output (#20713)
Fix reporting of TMC_S2VSA/B (#20730)
Improve RPi host kernel panic mitigation
Refactor Serial ports for more flexibility
Enable Purge More / Resume with EP + Host Prompt (#21671)

General Issues Fixed

Ignore M22 during SD print
Fix G2/G3 arcs over 180° (#20292, #20314, #20322)
Improve plan_arc circle detection (#20440)
Fix Buzzer (pin) init for uninitialized FastIO (#19559)
No move on Park = No move on Resume (#19569)
Fix compile of MMU2 with S-mode disabled (#19584)
Fix Z_AFTER_HOMING without probe (#19607)
Allow bypass for cold E movement (#19606)
Keep HAL tasks running during PID Autotune (#19671)
Fix starting fan with bad material preset index (#19773)
Watchdog Refresh for LVGL Asset Load (#19724)
Fix SET_SOFT_ENDSTOP_LOOSE w/out soft endstops (#19734)
Fix IDEX layer shift and DIR states (#19756)
Apply home offsets to probing, Z Safe Homing (#19423)
Fix G2/G3 P<circles> E and Z motion (#19797)
Fix Anycubic Chiron "Ready" detection (#19880)
Fix Chiron probe low point (#19962)
Fix PASSWORD compile w/out LCD (#19888)
Fix DAC-related bugs (#19907, #19921, #20205)
Keep SPI active on LPC176x (#19932)
Fix Laser / Spindle issues (#19970, #20509)
Fix STM32 HW Serial + EP compile (#19990)
Don't close diveDir in fileExists (#20035)
Fix Endstop Interrupts with SPI endstops, sanity checks (#20051)
Fix tool-change servo index for E2 and up (#20060)
Use extra G35 BLTouch HS Mode clearance in Tramming Wizard (#20057)
Fix Linux GPIO logging (#20093)
Fix MAX6675 SPI init, conflicts (#20086)
Fix MAX31865 on SPI (PT100/1000) support (#20074)
Fix extraneous Linear Advance DIR change (#20131)
Multi-Hotend Preheat Fixes (#20165)
Fix NaN mesh entries with ABL_BILINEAR_SUBDIVISION (#20143)
Fix bad SET_FAST_PWM_FREQ calls (#20227)
Fix backward Filament (Presence) Sensor pulls (#20228)
Fix Load Filament wait (#20243)
Fix UBL manual mesh adjust behavior (#20248)
Fix Z4 in ENABLE/DISABLE_AXIS_Z (#20256)
Add missing header to use HAS_SD_HOST_DRIVE (#20270)
Fix M73 LCD code typo (#20300)
Prevent Watchdog reset writing Creality 4.x EEPROM (#20328)
Fix MESH_BED_LEVELING without SEGMENT_LEVELED_MOVES (#20363)
Fix TMC_HOME_PHASE divide-by-zero (#20368)
Fix auto#.g file handling, add NO_SD_AUTOSTART (#20071)
Fix UBL Debug Messages (#20423)
Fix issues with preheating before leveling
Fix SD print completion logic (#20456)
Fix RESTORE_LEVELING_AFTER_G28 behavior (#20471)
Apply HOME_AFTER_DEACTIVATE to G28 O (#20525)
Fix G34 compile with bed leveling disabled (#20537)
Fix UBL mesh inset Z position (#20538)
Fix G28 leveling state, UBL compile (#20499)
Apply NO_MOTION_BEFORE_HOMING to joystick motion (#20462)
Fix PARKING_EXTRUDER homing with solenoid (#20473)
Fix CHAMBER_FAN_MODE 0 build (#20621)
Fix UBL mesh edit delta moves (#20620)
Fix thermal error protection, reporting (#20655)
Fix IDEX reboot on travel after G28 X (#20654)
Defer "quiet probing" till the last Z bump (#20610)
Don't apply hotend_offset.z to Z soft endstops (#20675)
MMU2 as a standard serial device (#20771, #20794, #20811)
Raise Z on exit from 'Level Bed Corners' (#20817)
Remove extra G29 V newlines (#20955)
Fix ARM delay function (#20901)
Fix TEMP_0_TR_ENABLE, rename temp conditions (#21016)
Fix: Unsupported use of %f in printf (#21001)
Fix remaining time divide-by-zero (#21080)
Fix IDEX broken endstop test (#21110)
Fixes for MP_SCARA (#21113, #21686)
Fix cleaning_buffer_counter check (#21115)
Fix LEVEL_CORNERS_USE_PROBE with BLTOUCH_HS_MODE (#21161)
Init (stow) BLTouch before X/Y homing (#21192)
Fix M355 with NEOPIXEL (#21200)
Fix GTR / SKR PRO + USB Flash Drive build (#21197)
Fix M876 when called from EP (#21210)
Duplicate fan speed in M106/7 IDEX Duplication Mode (#21208)
Apply AUTO_POWER_CONTROL later in setup() (#21193)
Fix Host Keepalive serial target (#21283, #21290)
Fix LPC + TMC boot loop (#21298)
Fix TouchMI stow in G34 (#21291)
Fix password menu stickiness before first auth (#21295)
Un-pause fans on STOP
Fix macros that call macros crashing (#21383)
Apply endstops-always-on for G28 sensorless (#21441, #21442)
Avoid watchdog reset in all wired EEPROMs (#21436)
Remove extraneous 'extern' hints (#21516)
Fix FAT delete of items with longname (#21528)
Make DELAY_NS round up on AVR (#21546)
Park Magnetic Switching Toolhead at the very end (#21552)
Fix M114 E / R broken by LIN_ADVANCE (#21579)
Fix Resume Print with UBL (#21564)
Fix Max Temperature not enforced (#21592)
Fix and improve Power Monitor (#21551)
Always swap with PRIME_FIRST_USED disabled (#21622)
Don't display service prompt unless needed (#21654)
Prevent extrusion on M600 un-park (#21670)
Fix Thermal Runaway false-alarm in M303, add HeaterWatch::check (#21743)
Fix compile with DISTINCT_E_FACTORS + SLIM_LCD_MENUS (#21733)

Build and Upload

Fix 'bossac' upload on Windows (#19545)
Fix and improve Makefile / CMake (#19640)
Fix at90usb1286 build (#19687)
Fix digipot compilation (#19731)
Fix mega2560ext environment (#19730)
More PIO dependencies optimizations
Update ZMIB_V2 env names (#19886)
Permit spaces in dependencies g++ path (#19929)
PIO env for MKS Nano boards in STM32 (#19905)
Fix 0 extruders & bed compile (#20030)
Sanity-check illegal native USB (#20047)
Optimized (non-optiboot) Melzi env (#20021)
Windows LPC Upload for non-admins (#20208)
Fix STM32F1 ‘freeMemory()’ warnings (#20319)
Update to STM32 v10, optimize build (#20325)
Fix up start, monitor baud (#20326)
Require a minimum PlatformIO version (#20361)
Use a newer LPC176x framework (#20469)
Check for misplaced configs on build (#20599)
Set build_flags via custom_marlin.FEATURE (#20692)
Silence unused parameter warnings
Compile fewer extraneous sources (#20822)
USB Flash Drive env hints for Auto Build Marlin (#20592)
Replace lib_deps for custom_marlin.FEATURE (#20858)
Update platform ststm32 (#20928, #21219)
Let libmaple accept RX/TX_BUFFER_SIZE (#21177)
Fix LERDGE 'extends' env references (#21305)
Preflight checks for PlatformIO build (#21068, #21191, #21361, #21372, #21658, #21574)
Misc build fixes (#21413)
Split up platformio.ini into ini folder (#21507)
Require PlatformIO >= 5.0.3
Fix Rumba32 variant for Marlin (#21497)
Add 'jump relaxing' compile flag to AVR targets (#21566)
Fix Flash size (512KB) for STM32F103ZE (#21590)
Skip scripts during platformio init (#21643)
Let compiler do Temperature.h inlining

For Developers

Bring “mftest -a” up to date with latest codebase
Digipots refactor / cleanup (#19690)
Rename ultralcd => marlinui
Internal G29N for G28+G29 (#20800)
Pins post-process header (#19860)
Add mfconfig script used to manage configurations
Add alternative ternary macros IF_ENABLED, IF_DISABLED
Distinct runout states (#19965)
Add parser.is_command(letter, code)
Local testing with Makefile, Docker, mftest (#19981)
Better USB Media Host conditions (#20176)
Adjust axis homed / trusted methods (#20323)
Avoid invalid memory optimizations (#20389)
More configurable animated bootscreen
Homing feedrates as XYZ array (#20426)
Balance CI tests (#20485)
Add manual move type ALL_AXES for UBL mesh editing
Fix and consolidate PSTR aliases (#20812, #20831)
Move singlenozzle temp/fan (#20829)
Internal G29N code as shortcut for G28\nG29
Clean up MarlinCore and MarlinUI (#20832, #20846, #20852, #20868, #20869, #20874)
Init KILL, SUICIDE, PSU earlier (#20810)
No extra build folder for st/jlink upload (#21341)
Script to generate Marlin TFT Images (#21340)
Read extra ENVS from pins.h in preflight checks (#21361)
AutoReport class (Temperature, Cardreader) (#20913, #20959)
Allow mftest -t to select test by number
Add -g3 to include macros in debug symbols (#21052)
Script to download & build Configurations (#20992)
Make F_CPU a compile-time constant (#21051)
Tweak tests, consolidate pins target validation (#21254, #21261)
Script to generate Marlin TFT Images (#21340)
Added typedef celsius_t (#21374, #21678)
Group UBL parameters in a structure
More IntelliSense-friendly declarations
Define HW serial ports needed for TMC UART (#21446)
Apply TMC UART to STM32, simplify
Improve uncrust script
Replace const float & with const_float_t (#21505)
getHighESpeed => autotemp_task
Macros to eliminate 'f + 0.0' (#21568, #21642)
Drop return value from Serial::write() (#21567, #21577)
Rename tick() to isr() to hilight interrupt-time
Disable assert() by default with -DNDEBUG
Add whole-degree accessors (#21685)
Clean up / improve generate_version script (#21674)
Add INO to .editorconfig
Prettier output from opt_enable, et.al. (#21707)
Drop compiler flag merge-constants due to GCC bug (#21711)

MarlinFirmware/Marlin 2.0.8 Marlin 2.0.8 on GitHub

New Features

New Machines and Boards

Configuration Updates

Optimized / Improved

Board / HAL Updates

Board / HAL Fixes

New LCDs / Controllers

New LCD / Controller Features

LCD / Controller Updates

LCD / Controller Fixes

Serial / Host Updates

General Issues Fixed

Build and Upload

For Developers

MarlinFirmware/Marlin 2.0.8
Marlin 2.0.8

on GitHub