updated changelog

CHANGELOG.md

@@ -7,6 +7,7 @@
     Bug #3897: Have Goodbye give all choices the effects of Goodbye
     Bug #3997: Almalexia doesn't pace
     Bug #4036: Weird behaviour of AI packages if package target has non-unique ID
+    Bug #4047: OpenMW not reporting its version number in MacOS; OpenMW-CS not doing it fully
     Bug #4221: Characters get stuck in V-shaped terrain
     Bug #4251: Stationary NPCs do not return to their position after combat
     Bug #4293: Faction members are not aware of faction ownerships in barter