chore: prepare v1.6.3

CHANGES.txt

@@ -1,6 +1,27 @@
 Dune Dynasty
 ============
 
+Version 1.6.3, TBD
+-------------------------
+  - Add new enhancement option for instant wall construction.
+    The config-key is "instant_walls".
+    This enhancement is disabled by default.
+  - Add new enhancement option to increase light vehicle sight range (from 2 to 4 tiles).
+    The config-key is "extend_sight_range".
+    This enhancement is disabled by default.
+  - Add support for new soundtracks:
+     o Dune II Amiga Soundtrack.
+     o Dune II 5-device mix (PC Speaker, Tandy 3-voice, AdLib, Roland MT-32 and SC-55) by the Sound Card database.
+  - Add in-game option "Aspect Ratio Correction". Also changes the config option to not include the ratio anymore (it is now hardcoded to 1.2).
+  - Add config option "midi_device_id" to select the MIDI device to be used on Windows (default=0).
+  - Add Midi Format option to Music Options to allow type of midi files to be played (config key is `midi_format`):
+     o pcs: PC Speaker
+     o tan: Tandy 3 voices
+     o gm: General Midi (SC-55) (=default)
+     o mt32: Roland MT-32
+  - Fix hanging notes after song-change with MIDI-playback on macOS.
+  - Fix aspect ratio of menus/cutscenes/mentat-screens for modern monitors by using a default ratio of 1.2 instead of 1.1.
+
 Version 1.6.2, 2024-02-24
 -------------------------
   - Make enhancement "Raise unit cap" more effective.