Update ChangeLog and Jamulus.pro for 3.12.3 release

Author: pljones

ChangeLog

@@ -1,5 +1,25 @@
-### 3.12.2dev <- NOTE: the release version number will be 3.12.3 ###
+### 3.12.3 (2026-07-26) ###
 
+- Introduce Directory Server in Asia. This replaces Any Genre 3. Asian/Australian users should from now on use Any Genre Asia (#3697).
+  (contributed by @ann0see)
+
+- Move internal domains from jamulus.io to jamulus.app as .io domains have an unclear future (#3701).
+  (contributed by @ann0see)
+
+- Updated copyright to incorporate AGPL3.0+ (#3712).
+  (contributed by @pljones)
+
+- Bugfix: Fix memory leak for audio alerts (#3728).
+  (contributed by @ann0see)
+
+- Resolve out of bounds access issue (#3810).
+  (contributed by @ann0see)
+
+- Added bounds checking for country code lookup (#3811).
+  (contributed by @ann0see)
+
+- Server: Report OS as Unix if not Windows, Mac, iOS, Android or Linux (#3699).
+  (contributed by @softins)
 
 
 ### 3.12.2 (2026-06-24) ###

Jamulus.pro

@@ -1,4 +1,4 @@
-VERSION = 3.12.2dev
+VERSION = 3.12.3
 
 # Using lrelease and embed_translations only works for Qt 5.12 or later.
 # See https://github.com/jamulussoftware/jamulus/pull/3288 for these changes.