#QMK Breaking Change - 2020 Nov 28 Changelog

Four times a year QMK runs a process for merging Breaking Changes. A Breaking Change is any change which modifies how QMK behaves in a way that is incompatible or potentially dangerous. We limit these changes to 4 times per year so that users can have confidence that updating their QMK tree will not break their keymaps.

#Changes Requiring User Action :id=changes-requiring-user-action

#Relocated Keyboards :id=relocated-keyboards

#Reduce Helix keyboard build variation (#8669)

The build commands for the Helix keyboard are:

make <helix_build_name>:<keymap_name>

For <helix_build_name>, specify the one in the rightmost column of the table below, such as helix, helix/pico.

#Update the Speedo firmware for v3.0 (#10657)

The Speedo keyboard has moved to cozykeys/speedo/v2 as the designer prepares to release the Speedo v3.0.

#Maartenwut/Maarten name change to evyd13/Evy (#10274)

Maartenwut has rebranded as @evyd13, and all released Maartenwut boards have moved.

#Xelus Valor and Dawn60 Refactors (#10512, #10584)

The Valor and Dawn60 keyboards by Xelus22 both now require their revisions to be specified when compiling.

#Updated Keyboard Codebases :id=keyboard-updates

#AEboards EXT65 Refactor (#10820)

The EXT65 codebase has been reworked so keymaps can be used with either revision.

#Core Changes :id=core-changes

#Fixes :id=core-fixes

• Reconnect the USB if users wake up a computer from the keyboard to restore the USB state (#10088)
• Fix cursor position bug in oled_write_raw functions (#10800)

#Additions and Enhancements :id=core-additions

• Allow MATRIX_ROWS to be greater than 32 (#10183)
• Add support for soft serial to ATmega32U2 (#10204)
• Allow direct control of MIDI velocity value (#9940)
• Joystick 16-bit support (#10439)
• Allow encoder resolutions to be set per encoder (#10259)
• Share button state from mousekey to pointing_device (#10179)
• Add advanced/efficient RGB Matrix Indicators (#8564)
• OLED display update interval support (#10388)
• Per-Key Retro Tapping (#10622)
• Allow backlight duty cycle limit (#10260)
• Add step sequencer feature (#9703)
• Added add_oneshot_mods & del_oneshot_mods (#10549)
• Add AT90USB support for serial.c (#10706)
• Auto shift: support repeats and early registration (#9826)

#Clean-ups and Optimizations :id=core-optimizations

• Haptic and solenoid cleanup (#9700)
• XD75 cleanup (#10524)
• Minor change to behavior allowing display updates to continue between task ticks (#10750)
• Change some GPIO manipulations in matrix.c to be atomic (#10491)
• combine repeated lines of code for ATmega32U2, ATmega16U2, ATmega328 and ATmega328P (#10837)
• Remove references to HD44780 (#10735)

#QMK Infrastructure and Internals :id=qmk-internals

• Add ability to build a subset of all keyboards based on platform. (#10420)
• Initialise EEPROM drivers at startup, instead of upon first execution (#10438)
• Make bootloader_jump weak for ChibiOS (#10417)
• Support for STM32 GPIOF,G,H,I,J,K (#10206)
• Add milc as a dependency and remove the installed milc (#10563)
• ChibiOS upgrade: early init conversions (#10214)
• ChibiOS upgrade: configuration file migrator (#9952)
• Add definition based on currently-selected serial driver. (#10716)
• Allow for modification of output RGB values when using rgblight/rgb_matrix. (#10638)
• Allow keyboards/keymaps to execute code at each main loop iteration (#10530)
• qmk cformat (#10767)
• Add a Make variable to easily enable DEBUG_MATRIX_SCAN_RATE on the command line (#10824)
• update Chibios OS USB for the OTG driver (#8893)
• Fixup version.h writing when using SKIP_VERSION=yes (#10972, #10974)
• Rename ledmatrix.h to match .c file (#7949)
• Split RGB_MATRIX_ENABLE into _ENABLE and _DRIVER (#10231)
• Split LED_MATRIX_ENABLE into _ENABLE and _DRIVER (#10840)