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QMK Breaking Change - 2020 Feb 29 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.
Update ChibiOS/ChibiOS-Contrib/uGFX submodules
- General Notes
- A
make git-submodule
may be required after pulling the latest QMK firmware code to update affected submodules to the upgraded revisions - Enabling link-time-optimization (
LINK_TIME_OPTIMIZATION_ENABLE = yes
) should work on a lot more boards
- A
- Upgrade to ChibiOS ver19.1.3
- This will allow QMK to update to upstream ChibiOS a lot easier -- the old version was ~2 years out of date. Automated update scripts have been made available to simplify future upgrades.
- Includes improved MCU support and bugfixes
- ChibiOS revision is now included in Command output
- Timers should now be more accurate
- Upgrade to newer ChibiOS-Contrib
- Also includes improved MCU support and bugfixes
- ChibiOS-Contrib revision is now included in Command output
- Upgrade to newer uGFX
- Required in order to support updated ChibiOS
Fix ChibiOS timer overflow for 16-bit SysTick devices
- On 16-bit SysTick devices, the timer subsystem in QMK was incorrectly dealing with overflow.
- When running at a 100000 SysTick frequency (possible on 16-bit devices, but uncommon), this overflow would occur after 0.65 seconds.
- Timers are now correctly handling this overflow case and timing should now be correct on ChibiOS/ARM.
Update LUFA submodule
- Updates the LUFA submodule to include updates from upstream (abcminiuser/lufa)
- Includes some cleanup for QMK DFU generation
Encoder flip
- Flips the encoder direction so that
clockwise == true
is for actually turning the knob clockwise - Adds
ENCODER_DIRECTION_FLIP
define, so that reversing the expected dirction is simple for users. - Cleans up documentation page for encoders
Adding support for BACKLIGHT_ON_STATE
for hardware PWM backlight
- Previously, the define only affected software PWM, and hardware PWM always assumed an N-channel MOSFET.
- The hardware PWM backlight setup has been updated to respect this option.
- The default "on" state has been changed to
1
- this impacts all keyboards using software PWM backlight that do not define it explicitly. If your keyboard's backlight is acting strange, it may have a P-channel MOSFET, and will need to have#define BACKLIGHT_ON_STATE 0
added to the keyboard-levelconfig.h
. Please see the PR for more detailed information.
Migrating ACTION_LAYER_TAP_KEY()
entries in fn_actions
to LT()
keycodes
fn_actions
is deprecated, and its functionality has been superseded by direct keycodes andprocess_record_user()
- The end result of removing this obsolete feature should result in a decent reduction in firmware size and code complexity
- All keymaps affected are recommended to switch away from
fn_actions
in favour of the custom keycode and macro features
Moving backlight keycode handling to process_keycode/
- This refactors the backlight keycode logic to be clearer and more modular.
- All backlight-related keycodes are now actioned in a single file.
- The
ACTION_BACKLIGHT_*
macros have also been deleted. If you are still using these in afn_actions[]
block, please switch to using the backlight keycodes or functions directly.
Refactor Planck keymaps to use Layout Macros
- Refactor Planck keymaps to use layout macros instead of raw matrix assignments
- Makes keymaps revision-agnostic
- Should reduce noise and errors in Travis CI logs
GON NerD codebase refactor
- Splits the codebase for GON NerD 60 and NerdD TKL PCBs into two separate directories.
- If your keymap is for a NerD 60 PCB, your
make
command is nowmake gon/nerd60:<keymap>
. - If your keymap is for a NerD TKL PCB, your
make
command is nowmake gon/nerdtkl:<keymap>
.