CHANGELOG: Add changes for version 1.2.1

(cherry picked from commit 77c9aed)

CHANGELOG

@@ -1,4 +1,39 @@
 
+= Arx Libertatis 1.2.1  (TBD) =
+
+Audio:
+
+* Fixed missing death screams for most NPCs (bug #1579)
+
+Performance:
+
+* Fixed excessively slow performance with "Crisp" alpha cutout antialiasing (bug #1595)
+
+Other Fixes:
+
+* The spellcast animation is no longer played when casting fails
+* Fixed a crash when starting a new game while a game is already loaded
+* Fixed a crash when color-keyed BMP images failed to load (bug #1557)
+* Fixed a crash when the player is given an item while the inventory is full (bug #1570)
+* Fixed a crash when releasing the escape key during the first frame of the main menu (bug #1155)
+* Fixed a crash caused by the flying eye spell (bug #511)
+* Fixed a crash when combining the coin purse with lights
+* Fixed a crash with the `activatephysics` script command (bug #1259)
+* Fixed a hang on startup on some POSIX platforms
+* Fixed formatting for HTTPS links in dialogs
+* Windows: Fixed a crash with Intel graphics and Crispt Alpha Cutout AA enabled (bug #1568)
+* Windows: Restored Windows XP support (bug #1569)
+
+Technical Changes:
+
+* Fixed compatibility with the CMake config installed by SDL 2.0.4+
+* Fixed build without fstatat()
+* Initial flags in CMAKE_REQUIRED_DEFINITIONS are no longer dropped when testing some platform features
+* Platform feature tests no longer fail if they produce generic warnings
+* Force disabled _GLIBCXX_ASSERTIONS in release builds (proper fixes will be in version 1.3)
+
+################################################################################
+
 = Arx Libertatis 1.2 "Mega Mega Mega"  (2021-07-13) =
 
 Gameplay: