Make `PREVENT_STUCK_MODIFIERS` the default (#3107)

* Remove chording as it is not documented, not used, and needs work.

* Make Leader Key an optional feature.

* Switch from `PREVENT_STUCK_MODIFIERS` to `STRICT_LAYER_RELEASE`

* Remove `#define PREVENT_STUCK_MODIFIERS` from keymaps.

common_features.mk

@@ -221,7 +221,6 @@ ifeq ($(strip $(USB_HID_ENABLE)), yes)
     include $(TMK_DIR)/protocol/usb_hid.mk
 endif
 
-
 ifeq ($(strip $(HD44780_ENABLE)), yes)
     SRC += drivers/avr/hd44780.c
     OPT_DEFS += -DHD44780_ENABLE
@@ -232,11 +231,15 @@ ifeq ($(strip $(DYNAMIC_KEYMAP_ENABLE)), yes)
     SRC += $(QUANTUM_DIR)/dynamic_keymap.c
 endif
 
+ifeq ($(strip $(LEADER_ENABLE)), yes)
+  SRC += $(QUANTUM_DIR)/process_keycode/process_leader.c
+  OPT_DEFS += -DLEADER_ENABLE
+endif
+
 QUANTUM_SRC:= \
     $(QUANTUM_DIR)/quantum.c \
     $(QUANTUM_DIR)/keymap_common.c \
-    $(QUANTUM_DIR)/keycode_config.c \
-    $(QUANTUM_DIR)/process_keycode/process_leader.c
+    $(QUANTUM_DIR)/keycode_config.c
 
 ifndef CUSTOM_MATRIX
     ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
@@ -251,5 +254,5 @@ ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
     QUANTUM_SRC += $(QUANTUM_DIR)/split_common/split_flags.c \
                 $(QUANTUM_DIR)/split_common/split_util.c \
                 $(QUANTUM_DIR)/split_common/i2c.c \
-                $(QUANTUM_DIR)/split_common/serial.c  
+                $(QUANTUM_DIR)/split_common/serial.c
 endif

docs/config_options.md

@@ -119,8 +119,8 @@ If you define these options you will enable the associated feature, which may in
 
 * `#define FORCE_NKRO`
   * NKRO by default requires to be turned on, this forces it on during keyboard startup regardless of EEPROM setting. NKRO can still be turned off but will be turned on again if the keyboard reboots.
-* `#define PREVENT_STUCK_MODIFIERS`
-  * stores the layer a key press came from so the same layer is used when the key is released, regardless of which layers are enabled
+* `#define STRICT_LAYER_RELEASE`
+  * force a key release to be evaluated using the current layer stack instead of remembering which layer it came from (used for advanced cases)
 
 ## Behaviors That Can Be Configured
 

docs/feature_leader_key.md

@@ -39,3 +39,11 @@ void matrix_scan_user(void) {
 As you can see, you have a few function. You can use `SEQ_ONE_KEY` for single-key sequences (Leader followed by just one key), and `SEQ_TWO_KEYS`, `SEQ_THREE_KEYS` up to `SEQ_FIVE_KEYS` for longer sequences.
 
 Each of these accepts one or more keycodes as arguments. This is an important point: You can use keycodes from **any layer on your keyboard**. That layer would need to be active for the leader macro to fire, obviously.
+
+## Adding Leader Key Support in the `rules.mk`
+
+To add support for Leader Key you simply need to add a single line to your keymap's `rules.mk`:
+
+```
+LEADER_ENABLE = yes
+```

docs/understanding_qmk.md

@@ -129,6 +129,7 @@ Comparing against our keymap we can see that the pressed key is KC_NLCK. From he
 <!-- FIXME: Magic happens between here and process_record -->
 
 ##### Process Record
+
 The `process_record()` function itself is deceptively simple, but hidden within is a gateway to overriding functionality at various levels of QMK. The chain of events is listed below, using cluecard whenever we need to look at the keyboard/keymap level functions.  Depending on options set in rule.mk or elsewhere, only a subset of the functions below will be included in final firmware.
 
 * [`void process_record(keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/08c682c193f43e5d54df990680ae93fc2e06150a/tmk_core/common/action.c#L172)
@@ -146,7 +147,6 @@ The `process_record()` function itself is deceptively simple, but hidden within
     * [`bool process_music(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_music.c#L114)
     * [`bool process_tap_dance(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_tap_dance.c#L136)
     * [`bool process_leader(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_leader.c#L38)
-    * [`bool process_chording(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_chording.c#L41)
     * [`bool process_combo(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_combo.c#L115)
     * [`bool process_unicode(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_unicode.c#L22)
     * [`bool process_ucis(uint16_t keycode, keyrecord_t *record)`](https://github.com/qmk/qmk_firmware/blob/661ca4440cc42f3b60697e98985c44b0571ccfc1/quantum/process_keycode/process_ucis.c#L91)

keyboards/1upkeyboards/1up60rgb/config.h

@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS

keyboards/1upkeyboards/sweet16/config.h

@@ -9,7 +9,7 @@
 #define DEVICE_VER      0x0001
 #define MANUFACTURER    1up Keyboards
 #define PRODUCT         Sweet16
-#define DESCRIPTION     4x4 grid 
+#define DESCRIPTION     4x4 grid
 
 /* key matrix size */
 #define MATRIX_ROWS 4
@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN B1
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
@@ -55,4 +52,4 @@
 #define RGBLIGHT_VAL_STEP 8
 #endif
 
-#endif
+#endif

keyboards/acr60/config.h

@@ -41,9 +41,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 20

keyboards/alf/x2/config.h

@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
@@ -55,4 +52,4 @@
 #define RGBLIGHT_VAL_STEP 8
 #endif
 
-#endif
+#endif

keyboards/alpha/config.h

@@ -43,8 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
 
 #define RGB_DI_PIN F4
 #ifdef RGB_DI_PIN

keyboards/alu84/config.h

@@ -59,9 +59,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLED_NUM 16

keyboards/at101_blackheart/config.h

@@ -38,6 +38,3 @@
 #define IS_COMMAND() ( \
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
-
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS

keyboards/atreus/keymaps/jeremy/keymap.c

@@ -4,8 +4,6 @@
 #include "action_layer.h"
 #include "keymap_colemak.h"
 
-#define PREVENT_STUCK_MODIFIERS
-
 // Each layer gets a name for readability, which is then used in the keymap matrix below.
 #define ALPH 0
 #define NUMS 1

keyboards/atreus/keymaps/khitsule/config.h

@@ -3,8 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define IGNORE_MOD_TAP_INTERRUPT
 
-#endif
+#endif

keyboards/atreus/keymaps/xk/config.h

@@ -30,8 +30,7 @@ the Free Software Foundation, either version 2 of the License, or
 #define MOUSEKEY_WHEEL_MAX_SPEED   8
 #define MOUSEKEY_WHEEL_TIME_TO_MAX 40
 
-#define PREVENT_STUCK_MODIFIERS
 #define IGNORE_MOD_TAP_INTERRUPT
 #define PERMISSIVE_HOLD
 
-#endif
+#endif

keyboards/atreus62/keymaps/mneme/config.h

@@ -1,6 +1,5 @@
 #define ONESHOT_TIMEOUT 3000
 #define TAPPING_TERM 200
-#define PREVENT_STUCK_MODIFIERS
 #define FORCE_NKRO
 #define LEADER_TIMEOUT 1000
 

keyboards/atreus62/keymaps/mneme/rules.mk

@@ -3,3 +3,4 @@ NKRO_ENABLE = true
 MOUSEKEY_ENABLE = no
 EXTRAKEY_ENABLE = yes
 CONSOLE_ENABLE = no
+LEADER_ENABLE = yes

keyboards/bfo9000/keymaps/andylikescandy6x18/config.h

@@ -37,7 +37,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
  #define PERMISSIVE_HOLD
 
- #define PREVENT_STUCK_MODIFIERS
-
-
 #endif

keyboards/bigseries/1key/config.h

@@ -47,9 +47,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3
 #define RGBLIGHT_ANIMATIONS

keyboards/bigseries/2key/config.h

@@ -47,9 +47,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3
 #define RGBLIGHT_ANIMATIONS

keyboards/bigseries/3key/config.h

@@ -47,9 +47,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3
 #define RGBLIGHT_ANIMATIONS

keyboards/bigseries/4key/config.h

@@ -47,9 +47,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3
 #define RGBLIGHT_ANIMATIONS

keyboards/bigswitch/config.h

@@ -47,8 +47,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
 
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3

keyboards/catch22/config.h

@@ -46,9 +46,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN F6
 #define RGBLIGHT_ANIMATIONS

keyboards/chimera_ergo/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/chimera_ls/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/chimera_ortho/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/chocopad/config.h

@@ -40,10 +40,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLIGHT_HUE_STEP 8
@@ -56,4 +52,4 @@
 #define ws2812_PORTREG  PORTD
 #define ws2812_DDRREG   DDRD
 
-#endif
+#endif

keyboards/clueboard/60/config.h

@@ -49,9 +49,6 @@
 /* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
 #define DEBOUNCE 6
 
-/* Prevent modifiers from being stuck on after layer changes. */
-#define PREVENT_STUCK_MODIFIERS
-
 /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
 //#define LOCKING_SUPPORT_ENABLE
 /* Locking resynchronize hack */

keyboards/clueboard/66/keymaps/bloodlvst/config.h

@@ -3,6 +3,5 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
 #define DISABLE_SPACE_CADET_ROLLOVER
 #endif

keyboards/comet46/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/contra/config.h

@@ -43,10 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 0

keyboards/contra/keymaps/ryanm101/config.h

@@ -3,7 +3,6 @@
 
 #include "config_common.h"
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_TERM 200
 
 #ifdef AUDIO_ENABLE
@@ -28,7 +27,7 @@
 /* enable basic MIDI features:
    - MIDI notes can be sent when in Music mode is on
 */
-                                
+
 #define MIDI_BASIC
 
 /* enable advanced MIDI features:
@@ -42,4 +41,4 @@
 /* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
 //#define MIDI_TONE_KEYCODE_OCTAVES 2
 
-#endif
+#endif

keyboards/crawlpad/config.h

@@ -40,9 +40,6 @@
     false \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #ifdef RGBLIGHT_ENABLE
 #define RGB_DI_PIN D3
 #define RGBLIGHT_ANIMATIONS

keyboards/crkbd/keymaps/default/config.h

@@ -36,7 +36,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define USE_SERIAL_PD2
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/dichotemy/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/dilly/config.h

@@ -43,10 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLIGHT_HUE_STEP 8
@@ -59,4 +55,4 @@
 #define ws2812_PORTREG  PORTD
 #define ws2812_DDRREG   DDRD
 
-#endif
+#endif

keyboards/dz60/config.h

@@ -41,9 +41,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 16

keyboards/dz60/keymaps/LEdiodes/config.h

@@ -41,9 +41,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 16

keyboards/ergodone/config.h

@@ -53,8 +53,6 @@
 /* Set 0 if debouncing isn't needed */
 #define DEBOUNCE    5
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define USB_MAX_POWER_CONSUMPTION 500
 
 /* NKRO */

keyboards/ergodox_ez/config.h

@@ -97,8 +97,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #define DEBOUNCE    15
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define USB_MAX_POWER_CONSUMPTION 500
 
 // RGB backlight

keyboards/ergodox_ez/keymaps/heartrobotninja/rules.mk

@@ -13,6 +13,7 @@ AUTOLOG_ENABLE = no
 RGBLIGHT_ENABLE = yes
 RGBLIGHT_ANIMATION = yes
 EXTRAKEY_ENABLE = yes
+LEADER_ENABLE = yes
 
 OPT_DEFS += -DUSER_PRINT
 
@@ -31,4 +32,4 @@ OPT_DEFS += -DKEYMAP_VERSION=\"$(KEYMAP_VERSION)\\\#$(KEYMAP_BRANCH)\"
 
 ifndef QUANTUM_DIR
 	include ../../../../Makefile
-endif
+endif

keyboards/ergodox_ez/keymaps/vim/vim.h

@@ -9,7 +9,6 @@
 
 #define PRESS(keycode) register_code16(keycode)
 #define RELEASE(keycode) unregister_code16(keycode)
-#define PREVENT_STUCK_MODIFIERS
 
 uint16_t VIM_QUEUE = KC_NO;
 

keyboards/ergodox_infinity/keymaps/gordon/config.h

@@ -15,8 +15,6 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#define PREVENT_STUCK_MODIFIERS
-
 #undef  IGNORE_MOD_TAP_INTERRUPT
 #define IGNORE_MOD_TAP_INTERRUPT
 

keyboards/ergodox_infinity/keymaps/narze/config.h

@@ -13,7 +13,6 @@
 
 #define IGNORE_MOD_TAP_INTERRUPT
 #define PERMISSIVE_HOLD
-#define PREVENT_STUCK_MODIFIERS
 
 #undef MOUSEKEY_DELAY
 #define MOUSEKEY_DELAY 100

keyboards/ergodox_infinity/keymaps/not-quite-neo/rules.mk

@@ -1,2 +1,3 @@
 BACKLIGHT_ENABLE = yes
-UNICODE_ENABLE = yes
+UNICODE_ENABLE = yes
+LEADER_ENABLE = yes

keyboards/ergoinu/config.h

@@ -31,8 +31,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define PRODUCT         ergoinu
 #define DESCRIPTION     An (Not Portable But Small) Ergonomic split keyboard
 
-
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/ergotravel/keymaps/ckofy/config.h

@@ -33,9 +33,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define TAPPING_TOGGLE 2
 
-// required if modifiers are defined in layers besided the default one.
-#define PREVENT_STUCK_MODIFIERS
-
 #undef RGBLED_NUM
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 12

keyboards/felix/config.h

@@ -42,8 +42,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
 
 /* there is no rgb underglow by default. */
 #define RGB_DI_PIN
@@ -53,4 +51,4 @@
 #define RGBLIGHT_SAT_STEP 8
 #define RGBLIGHT_VAL_STEP 8
 
-#endif
+#endif

keyboards/four_banger/config.h

@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E6
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
@@ -55,4 +52,4 @@
 #define RGBLIGHT_VAL_STEP 8
 #endif
 
-#endif
+#endif

keyboards/fourier/keymaps/jennetters/config.h

@@ -22,10 +22,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define TAPPING_TERM 100
 
-/* Try to prevent sticky keys */
-#define PREVENT_STUCK_MODIFIERS
-
 /* Use I2C or Serial, not both */
 
 #define USE_SERIAL
-// #define USE_I2C
+// #define USE_I2C

keyboards/fractal/config.h

@@ -43,10 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 0

keyboards/frosty_flake/keymaps/nikchi/rules.mk

@@ -1,5 +1,5 @@
 # Build Options
-#   change to "no" to disable the options, or define them in the Makefile in 
+#   change to "no" to disable the options, or define them in the Makefile in
 #   the appropriate keymap folder that will get included automatically
 #
 BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
@@ -17,6 +17,7 @@ BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
 RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
 SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
 TAP_DANCE_ENABLE = yes
+LEADER_ENABLE = yes
 
 ifndef QUANTUM_DIR
 	include ../../../../Makefile

keyboards/gh80_3000/config.h

@@ -43,10 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 0
@@ -55,4 +51,4 @@
 #define RGBLIGHT_VAL_STEP 8
 #endif
 
-#endif
+#endif

keyboards/gherkin/config.h

@@ -43,10 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 0
@@ -55,4 +51,4 @@
 #define RGBLIGHT_VAL_STEP 8
 #endif
 
-#endif
+#endif

keyboards/gherkin/keymaps/talljoe_gherkin/config.h

@@ -3,6 +3,4 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
-
-#endif
+#endif

keyboards/gonnerd/keymaps/gam3cat/config.h

@@ -1,7 +1,6 @@
 #include "../../config.h"
 //GRAVE_ESC override for CTRL+SHIFT+ESC Windows task manager shortcut.
 #define GRAVE_ESC_CTRL_OVERRIDE
-#define PREVENT_STUCK_MODIFIERS
 
 //Delay matrix scan for tap dance, reduce to activate modifier keys faster.
 //#define TAPPING_TERM 200

keyboards/hadron/keymaps/default/config.h

@@ -5,7 +5,6 @@
 
 #define LEADER_TIMEOUT 300
 //#define BACKLIGHT_BREATHING
-#define PREVENT_STUCK_MODIFIERS
 
 #define USE_I2C
 #define SSD1306OLED

keyboards/hadron/keymaps/side_numpad/config.h

@@ -5,7 +5,6 @@
 
 #define LEADER_TIMEOUT 300
 //#define BACKLIGHT_BREATHING
-#define PREVENT_STUCK_MODIFIERS
 
 #define USE_I2C
 #define SSD1306OLED

keyboards/handwired/MS_sculpt_mobile/config.h

@@ -28,10 +28,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     6000
 
 /* key matrix size */
-#define MATRIX_ROWS 8 
-#define MATRIX_COLS 18 
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 18
 
-#ifdef ASTAR 
+#ifdef ASTAR
 #define PRODUCT         sculpt mobile astar
                         /*0   1   2   3    4   5  6   7   8 */
 #define MATRIX_ROW_PINS {D7, C6, D4, D0, D1, D3, D2, E2}
@@ -95,6 +95,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_MACRO
 //#define NO_ACTION_FUNCTION
 
-#define PREVENT_STUCK_MODIFIERS
-
 #endif

keyboards/handwired/atreus50/keymaps/ajp10304/config.h

@@ -3,8 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
-
 #undef MATRIX_ROW_PINS
 #undef MATRIX_COL_PINS
 

keyboards/handwired/dactyl/config.h

@@ -63,8 +63,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Set 0 if debouncing isn't needed */
 #define DEBOUNCE    15
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define USB_MAX_POWER_CONSUMPTION 500
 
 #endif

keyboards/handwired/kbod/config.h

@@ -48,7 +48,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
 #define DIODE_DIRECTION COL2ROW
- 
+
 // #define BACKLIGHT_PIN B7
 // #define BACKLIGHT_BREATHING
 // #define BACKLIGHT_LEVELS 3
@@ -159,8 +159,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 //#define NO_ACTION_MACRO
 //#define NO_ACTION_FUNCTION
 
-#define PREVENT_STUCK_MODIFIERS
-
 #undef TAPPING_TOGGLE
 #define TAPPING_TOGGLE 2
 

keyboards/handwired/promethium/keymaps/default/config.h

@@ -11,8 +11,6 @@
 /* skip bootmagic and eeconfig */
 #define BOOTMAGIC_KEY_SKIP              KC_SPACE
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGBSPS_ENABLE
 #define RGBSPS_DEMO_ENABLE
 

keyboards/handwired/promethium/keymaps/priyadi/config.h

@@ -11,8 +11,6 @@
 /* skip bootmagic and eeconfig */
 #define BOOTMAGIC_KEY_SKIP              KC_SPACE
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGBSPS_ENABLE
 #define RGBSPS_DEMO_ENABLE
 

keyboards/handwired/space_oddity/config.h

@@ -49,10 +49,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
-
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS
 #define RGBLED_NUM 0

keyboards/helix/pico/config.h

@@ -28,7 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     A split keyboard for the cheap makers
 
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/helix/rev1/keymaps/OLED_sample/config.h

@@ -35,7 +35,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define SSD1306OLED
 
-#define PREVENT_STUCK_MODIFIERS
+#define USE_SERIAL_PD2
+
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/helix/rev2/config.h

@@ -28,7 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     A split keyboard for the cheap makers
 
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/hhkb/keymaps/blakedietz/rules.mk

@@ -1,2 +1,3 @@
 TAP_DANCE_ENABLE = no
 UNICODE_ENABLE   = no
+LEADER_ENABLE = yes

keyboards/infinity60/config.h

@@ -18,8 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0x1c11
 #define PRODUCT_ID      0xb04d

keyboards/iris/keymaps/davidrambo/config.h

@@ -27,7 +27,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* Select hand configuration */
 #define PERMISSIVE_HOLD
-#define PREVENT_STUCK_MODIFIERS
 #define MASTER_LEFT
 // #define MASTER_RIGHT
 // #define EE_HANDS

keyboards/iris/keymaps/jennetters/config.h

@@ -19,9 +19,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define TAPPING_TERM 150
 
-/* Try to prevent sticky keys */
-#define PREVENT_STUCK_MODIFIERS
-
 /* Use I2C or Serial, not both */
 
 #define USE_SERIAL
@@ -38,4 +35,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLED_NUM 12
 #define RGBLIGHT_HUE_STEP 8
 #define RGBLIGHT_SAT_STEP 8
-#define RGBLIGHT_VAL_STEP 8
+#define RGBLIGHT_VAL_STEP 8

keyboards/iris/keymaps/krusli/config.h

@@ -20,8 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "config_common.h"
 
-// #define PREVENT_STUCK_MODIFIERS
-
 /* Use I2C or Serial, not both */
 
 #define USE_SERIAL

keyboards/iris/keymaps/xyverz/config.h

@@ -23,8 +23,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define USE_SERIAL
 #define EE_HANDS
 
-#define PREVENT_STUCK_MODIFIERS
-
 #undef PRODUCT
 #define PRODUCT Iris Keyboard
 

keyboards/jc65/v32u4/keymaps/gam3cat/config.h

@@ -1,7 +1,6 @@
 #include "../../config.h"
 //GRAVE_ESC override for CTRL+SHIFT+ESC Windows task manager shortcut.
 #define GRAVE_ESC_CTRL_OVERRIDE
-#define PREVENT_STUCK_MODIFIERS
 
 //Delay matrix scan for tap dance, reduce to activate modifier keys faster.
 //#define TAPPING_TERM 200

keyboards/jj40/keymaps/ajp10304/config.h

@@ -1,8 +0,0 @@
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "../../config.h"
-
-#define PREVENT_STUCK_MODIFIERS
-
-#endif

keyboards/jj40/keymaps/fun40/config.h

@@ -4,6 +4,5 @@
 #include "../../config.h"
 
 #define FORCE_NKRO
-#define PREVENT_STUCK_MODIFIERS
 
 #endif

keyboards/jj40/keymaps/krusli/config.h

@@ -3,7 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
 // #define TAPPING_TERM 300
 
 #endif

keyboards/jj40/keymaps/oscillope/config.h

@@ -3,7 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_TERM 200
 
 #endif

keyboards/jj40/keymaps/suzuken/config.h

@@ -3,7 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_TERM 300
 
 #endif

keyboards/jj40/keymaps/waples/config.h

@@ -3,7 +3,6 @@
 
 #include "../../config.h"
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_TERM 300
 
 #endif

keyboards/jm60/config.h

@@ -18,8 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xFEED
 #define PRODUCT_ID      0x6464

keyboards/k_type/config.h

@@ -18,8 +18,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0x1c11
 #define PRODUCT_ID      0xb04d

keyboards/katana60/config.h

@@ -48,7 +48,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
 #define DIODE_DIRECTION ROW2COL
- 
+
 // #define BACKLIGHT_PIN B7
 // #define BACKLIGHT_BREATHING
 // #define BACKLIGHT_LEVELS 3
@@ -111,7 +111,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 )
 
 #define TAPPING_TERM 200
-#define PREVENT_STUCK_MODIFIERS
 
 /* control how magic key switches layers */
 //#define MAGIC_KEY_SWITCH_LAYER_WITH_FKEYS  true

keyboards/kbd75/config.h

@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS

keyboards/kinesis/keymaps/insertsnideremarks/config.h

@@ -5,7 +5,6 @@
 #include "../../config.h"
 
 // place overrides here
-#define PREVENT_STUCK_MODIFIERS
 #define IGNORE_MOD_TAP_INTERRUPT
 #define TAPPING_TERM 175
 #define TAPPING_TOGGLE 2

keyboards/lets_split/keymaps/OLED_sample/config.h

@@ -38,8 +38,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define SSD1306OLED
 //#define OLED_ROTATE180
 
-
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/lets_split/keymaps/adam/config.h

@@ -43,7 +43,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #undef TAPPING_TERM
 #define TAPPING_TERM 200 //At 500 some bad logic takes hold
-#define PREVENT_STUCK_MODIFIERS
 #define IGNORE_MOD_TAP_INTERRUPT
 #define PERMISSIVE_HOLD
 

keyboards/lets_split/keymaps/khord/config.h

@@ -25,9 +25,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define TAPPING_TERM 150
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 /* Use I2C or Serial, not both */
 
 #define USE_SERIAL

keyboards/lets_split/keymaps/piemod/config.h

@@ -43,7 +43,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_EFFECT_KNIGHT_LENGTH 1
 
 // Typing Options
-#define PREVENT_STUCK_MODIFIERS
 #define QMK_KEYS_PER_SCAN 4
 
 #endif

keyboards/lets_split/keymaps/waples/config.h

@@ -12,6 +12,4 @@
 //  #define MASTER_RIGHT
 #define EE_HANDS              // We like to have choices I guess
 
-#define PREVENT_STUCK_MODIFIERS // When switching layers, this will release all mods
-
 #endif

keyboards/lets_split/keymaps/xk/config.h

@@ -37,7 +37,6 @@ the Free Software Foundation, either version 2 of the License, or
 #define EE_HANDS
 
 
-#define PREVENT_STUCK_MODIFIERS
 #define IGNORE_MOD_TAP_INTERRUPT
 #define PERMISSIVE_HOLD
 

keyboards/m10a/keymaps/gam3cat/config.h

@@ -1,2 +0,0 @@
-#include "../../config.h"
-#define PREVENT_STUCK_MODIFIERS

keyboards/mechmini/v2/config.h

@@ -62,9 +62,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS

keyboards/melody96/config.h

@@ -43,9 +43,6 @@
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS

keyboards/minidox/keymaps/alairock/config.h

@@ -36,5 +36,4 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define RGBLIGHT_HUE_STEP 10
 #define RGBLIGHT_SAT_STEP 17
 #define RGBLIGHT_VAL_STEP 17
-#define PREVENT_STUCK_MODIFIERS
 #endif

keyboards/minidox/keymaps/khitsule/config.h

@@ -1,8 +1,6 @@
 #ifndef CONFIG_USER_H
 #define CONFIG_USER_H
 
-#define PREVENT_STUCK_MODIFIERS
-
 #define IGNORE_MOD_TAP_INTERRUPT
 
-#endif
+#endif

keyboards/mint60/config.h

@@ -29,7 +29,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define PRODUCT         Mint60
 #define DESCRIPTION     A row staggered split keyboard
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 

keyboards/mitosis/config.h

@@ -52,8 +52,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *  These options are also useful to firmware size reduction.
  */
 
-#define PREVENT_STUCK_MODIFIERS
-
 /* disable debug print */
 //#define NO_DEBUG
 

keyboards/niu_mini/config.h

@@ -64,9 +64,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
 )
 
-/* prevent stuck modifiers */
-#define PREVENT_STUCK_MODIFIERS
-
 #define RGB_DI_PIN E2
 #ifdef RGB_DI_PIN
 #define RGBLIGHT_ANIMATIONS