Release 0.5.0

Fix the green RX LED not returning after un-muting mid-QSO, plus the MANUAL.md
user guide and the MkDocs documentation website from this cycle.

Bump version to 0.5.0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -7,6 +7,14 @@ single running list until the first versioned release.
 
 ## Unreleased
 
+_Nothing yet._
+
+## 0.5.0
+
+- **Fix:** un-muting during an active QSO left the LED **off** instead of returning
+  to **green**. On un-mute the green RX LED is now restored from the current receive
+  state (active DMR slot or FM/digital signal), so an in-progress call lights green
+  again.
 - **`MANUAL.md`** — a user-facing feature & usage guide covering both inherited
   OpenGD77 features and FreeTRX additions, each tagged 🟢 [FreeTRX] or ⚪
   [OpenGD77]. Includes the spectrum scope (VFO sweep, hold `#`), channel add/delete,

MDUV380_firmware/application/include/freetrxVersion.h

@@ -5,9 +5,9 @@
 #define _FREETRX_VERSION_H_
 
 #define FREETRX_VERSION_MAJOR   0
-#define FREETRX_VERSION_MINOR   4
+#define FREETRX_VERSION_MINOR   5
 #define FREETRX_VERSION_PATCH   0
 
-#define FREETRX_VERSION         "0.4.0"
+#define FREETRX_VERSION         "0.5.0"
 
 #endif // _FREETRX_VERSION_H_

MDUV380_firmware/application/source/applicationMain.c

@@ -39,6 +39,7 @@
 #include "io/Leds.h"
 #include "interfaces/adc.h"
 #include "hardware/radioHardwareInterface.h"
+#include "hardware/HR-C6000.h" // slotState, for restoring the green RX LED after unmute
 
 #include "io/buttons.h"
 #include "usb/usb_com.h"
@@ -1447,9 +1448,15 @@ void applicationMainTask(void)
 			}
 			else if (muteFlashActive)
 			{
-				// Just unmuted: release our forced LED state.
+				// Just unmuted: stop the red flash and restore the green LED to the
+				// current RX state, so a QSO in progress lights green again instead of
+				// staying dark. Green is normally lit for an active DMR slot (matching
+				// our filter) or a received FM/digital signal; if nothing is being
+				// received it stays off. The normal RX code then keeps it correct.
+				bool rxGreen = (slotState == DMR_STATE_RX_1) || (slotState == DMR_STATE_RX_2) ||
+						currentRadioDevice->analogSignalReceived || currentRadioDevice->digitalSignalReceived;
 				LedWrite(LED_RED, 0);
-				LedWrite(LED_GREEN, 0);
+				LedWrite(LED_GREEN, (rxGreen ? 1 : 0));
 				muteFlashActive = false;
 			}
 		}