diff --git a/applications/services/desktop/desktop.c b/applications/services/desktop/desktop.c
index 28d09cc0..77999dfc 100644
--- a/applications/services/desktop/desktop.c
+++ b/applications/services/desktop/desktop.c
@@ -135,7 +135,6 @@ static void desktop_auto_lock_inhibit(Desktop* desktop) {
 
 void desktop_lock(Desktop* desktop) {
     furi_hal_rtc_set_flag(FuriHalRtcFlagLock);
-    furi_hal_rtc_set_pin_fails(0);
 
     if(desktop->settings.pin_code.length) {
         Cli* cli = furi_record_open(RECORD_CLI);
@@ -159,6 +158,7 @@ void desktop_unlock(Desktop* desktop) {
     scene_manager_search_and_switch_to_previous_scene(desktop->scene_manager, DesktopSceneMain);
     desktop_auto_lock_arm(desktop);
     furi_hal_rtc_reset_flag(FuriHalRtcFlagLock);
+    furi_hal_rtc_set_pin_fails(0);
 
     if(desktop->settings.pin_code.length) {
         Cli* cli = furi_record_open(RECORD_CLI);
diff --git a/applications/services/desktop/scenes/desktop_scene_pin_input.c b/applications/services/desktop/scenes/desktop_scene_pin_input.c
index 157acebf..e062c1b9 100644
--- a/applications/services/desktop/scenes/desktop_scene_pin_input.c
+++ b/applications/services/desktop/scenes/desktop_scene_pin_input.c
@@ -55,7 +55,6 @@ static void desktop_scene_pin_input_back_callback(void* context) {
 static void desktop_scene_pin_input_done_callback(const PinCode* pin_code, void* context) {
     Desktop* desktop = (Desktop*)context;
     if(desktop_pin_compare(&desktop->settings.pin_code, pin_code)) {
-        furi_hal_rtc_set_pin_fails(0);
         view_dispatcher_send_custom_event(desktop->view_dispatcher, DesktopPinInputEventUnlocked);
     } else {
         uint32_t pin_fails = furi_hal_rtc_get_pin_fails();
diff --git a/documentation/AppManifests.md b/documentation/AppManifests.md
index 99f6386b..b48a6b8e 100644
--- a/documentation/AppManifests.md
+++ b/documentation/AppManifests.md
@@ -47,7 +47,7 @@ Only two parameters are mandatory: **_appid_** and **_apptype_**. Others are opt
 The following parameters are used only for [FAPs](./AppsOnSDCard.md):
 
 - **sources**: list of strings, file name masks used for gathering sources within the app folder. The default value of `["*.c*"]` includes C and C++ source files. Applications cannot use the `"lib"` folder for their own source code, as it is reserved for **fap_private_libs**.
-- **fap_version**: tuple, 2 numbers in the form of (x,y): application version to be embedded within .fap file. The default value is (0,1), meaning version "0.1".
+- **fap_version**: string, application version. The default value is "0.1". You can also use a tuple of 2 numbers in the form of (x,y) to specify the version. It is also possible to add more dot-separated parts to the version, like patch number, but only major and minor version numbers are stored in the built .fap.
 - **fap_icon**: name of a `.png` file, 1-bit color depth, 10x10px, to be embedded within `.fap` file.
 - **fap_libs**: list of extra libraries to link the application against. Provides access to extra functions that are not exported as a part of main firmware at the expense of increased `.fap` file size and RAM consumption.
 - **fap_category**: string, may be empty. App subcategory, also determines the path of the FAP within the apps folder in the file system.
diff --git a/documentation/FuriHalDebuging.md b/documentation/FuriHalDebuging.md
index 8ff77016..e7f2d8f2 100644
--- a/documentation/FuriHalDebuging.md
+++ b/documentation/FuriHalDebuging.md
@@ -1,6 +1,6 @@
 # Furi HAL Debugging
 
-Some Furi subsystem got additional debugging features that can be enabled by adding additional defines to firmware compilation.
+Some Furi subsystems got additional debugging features that can be enabled by adding additional defines to firmware compilation.
 Usually they are used for low level tracing and profiling or signal redirection/duplication.
 
 
@@ -23,4 +23,4 @@ There are 3 signals that will be exposed to external GPIO pins:
 There are 2 signals that will be exposed to external GPIO pins:
 
 - `WFI`     - `PB2` - Light sleep (wait for interrupt) used. Basically this is lightest and most non-breaking things power save mode. All function and debug should work correctly in this mode.
-- `STOP`    - `PC3` - STOP mode used. Platform deep sleep mode. Extremely fragile mode where most of the silicon is disabled or in unusable state. Debugging MCU in this mode is nearly impossible.
\ No newline at end of file
+- `STOP`    - `PC3` - STOP mode used. Platform deep sleep mode. Extremely fragile mode where most of the silicon is disabled or in unusable state. Debugging MCU in this mode is nearly impossible.
diff --git a/firmware/targets/f18/api_symbols.csv b/firmware/targets/f18/api_symbols.csv
index 828c7716..ee1ae115 100644
--- a/firmware/targets/f18/api_symbols.csv
+++ b/firmware/targets/f18/api_symbols.csv
@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,26.2,,
+Version,+,26.3,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
diff --git a/firmware/targets/f7/api_symbols.csv b/firmware/targets/f7/api_symbols.csv
index d73a1c7b..e2bedffb 100644
--- a/firmware/targets/f7/api_symbols.csv
+++ b/firmware/targets/f7/api_symbols.csv
@@ -1,5 +1,5 @@
 entry,status,name,type,params
-Version,+,26.2,,
+Version,+,26.3,,
 Header,+,applications/services/bt/bt_service/bt.h,,
 Header,+,applications/services/cli/cli.h,,
 Header,+,applications/services/cli/cli_vcp.h,,
@@ -144,10 +144,12 @@ Header,+,lib/mlib/m-rbtree.h,,
 Header,+,lib/mlib/m-tuple.h,,
 Header,+,lib/mlib/m-variant.h,,
 Header,+,lib/nfc/nfc_device.h,,
+Header,+,lib/nfc/protocols/nfc_util.h,,
 Header,+,lib/one_wire/maxim_crc.h,,
 Header,+,lib/one_wire/one_wire_host.h,,
 Header,+,lib/one_wire/one_wire_slave.h,,
 Header,+,lib/print/wrappers.h,,
+Header,+,lib/pulse_reader/pulse_reader.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_adc.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_bus.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_comp.h,,
@@ -175,7 +177,6 @@ Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_tim.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_usart.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_utils.h,,
 Header,+,lib/stm32wb_hal/Inc/stm32wbxx_ll_wwdg.h,,
-Header,+,lib/pulse_reader/pulse_reader.h,,
 Header,+,lib/subghz/blocks/const.h,,
 Header,+,lib/subghz/blocks/decoder.h,,
 Header,+,lib/subghz/blocks/encoder.h,,
@@ -2064,6 +2065,11 @@ Function,+,nfc_device_save_shadow,_Bool,"NfcDevice*, const char*"
 Function,+,nfc_device_set_loading_callback,void,"NfcDevice*, NfcLoadingCallback, void*"
 Function,+,nfc_device_set_name,void,"NfcDevice*, const char*"
 Function,+,nfc_file_select,_Bool,NfcDevice*
+Function,+,nfc_util_bytes2num,uint64_t,"const uint8_t*, uint8_t"
+Function,+,nfc_util_even_parity32,uint8_t,uint32_t
+Function,+,nfc_util_num2bytes,void,"uint64_t, uint8_t, uint8_t*"
+Function,+,nfc_util_odd_parity,void,"const uint8_t*, uint8_t*, uint8_t"
+Function,+,nfc_util_odd_parity8,uint8_t,uint8_t
 Function,-,nfca_append_crc16,void,"uint8_t*, uint16_t"
 Function,-,nfca_emulation_handler,_Bool,"uint8_t*, uint16_t, uint8_t*, uint16_t*"
 Function,-,nfca_get_crc16,uint16_t,"uint8_t*, uint16_t"
diff --git a/lib/nfc/SConscript b/lib/nfc/SConscript
index b086298d..b8551db8 100644
--- a/lib/nfc/SConscript
+++ b/lib/nfc/SConscript
@@ -6,6 +6,7 @@ env.Append(
     ],
     SDK_HEADERS=[
         File("nfc_device.h"),
+        File("protocols/nfc_util.h"),
     ],
 )
 
diff --git a/lib/nfc/protocols/nfc_util.h b/lib/nfc/protocols/nfc_util.h
index 04fa7622..a9d5a3f8 100644
--- a/lib/nfc/protocols/nfc_util.h
+++ b/lib/nfc/protocols/nfc_util.h
@@ -2,6 +2,10 @@
 
 #include <stdint.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void nfc_util_num2bytes(uint64_t src, uint8_t len, uint8_t* dest);
 
 uint64_t nfc_util_bytes2num(const uint8_t* src, uint8_t len);
@@ -11,3 +15,7 @@ uint8_t nfc_util_even_parity32(uint32_t data);
 uint8_t nfc_util_odd_parity8(uint8_t data);
 
 void nfc_util_odd_parity(const uint8_t* src, uint8_t* dst, uint8_t len);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/scripts/debug/flipperapps.py b/scripts/debug/flipperapps.py
index 90582c1e..608c3041 100644
--- a/scripts/debug/flipperapps.py
+++ b/scripts/debug/flipperapps.py
@@ -196,7 +196,10 @@ class FlipperAppStateHelper:
         self.set_debug_mode(False)
 
     def set_debug_mode(self, mode: bool) -> None:
-        gdb.execute(f"set variable furi_hal_debug_gdb_session_active = {int(mode)}")
+        try:
+            gdb.execute(f"set variable furi_hal_debug_gdb_session_active = {int(mode)}")
+        except gdb.error as e:
+            print(f"Failed to set debug mode: {e}")
 
 
 # Init additional 'fap-set-debug-elf-root' command and set up hooks
diff --git a/scripts/fbt/appmanifest.py b/scripts/fbt/appmanifest.py
index 5e41f4c0..ed1654e3 100644
--- a/scripts/fbt/appmanifest.py
+++ b/scripts/fbt/appmanifest.py
@@ -56,7 +56,7 @@ class FlipperApplication:
 
     # .fap-specific
     sources: List[str] = field(default_factory=lambda: ["*.c*"])
-    fap_version: Tuple[int] = field(default_factory=lambda: (0, 1))
+    fap_version: str | Tuple[int] = "0.1"
     fap_icon: Optional[str] = None
     fap_libs: List[str] = field(default_factory=list)
     fap_category: str = ""
@@ -84,6 +84,13 @@ class FlipperApplication:
     def __post_init__(self):
         if self.apptype == FlipperAppType.PLUGIN:
             self.stack_size = 0
+        if isinstance(self.fap_version, str):
+            try:
+                self.fap_version = tuple(int(v) for v in self.fap_version.split("."))
+            except ValueError:
+                raise FlipperManifestException(
+                    f"Invalid version string '{self.fap_version}'. Must be in the form 'major.minor'"
+                )
 
 
 class AppManager:
diff --git a/scripts/ufbt/project_template/app_template/application.fam b/scripts/ufbt/project_template/app_template/application.fam
index 37a4ce66..a2d23ef4 100644
--- a/scripts/ufbt/project_template/app_template/application.fam
+++ b/scripts/ufbt/project_template/app_template/application.fam
@@ -8,7 +8,7 @@ App(
     stack_size=2 * 1024,
     fap_category="Examples",
     # Optional values
-    # fap_version=(0, 1),  # (major, minor)
+    # fap_version="0.1",
     fap_icon="@FBT_APPID@.png",  # 10x10 1-bit PNG
     # fap_description="A simple app",
     # fap_author="J. Doe",