diff --git a/changelog.txt b/changelog.txt
index 006f82bf..05c134b5 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -4778,3 +4778,9 @@ Menu improvements:
 - fixed the crash on converting regular/Archimedean tilings to tes format and generating tree rules
 - improvements to line patterns
 - fixed a possible crash when saving images
+
+2022-09-17 12:12 Update 12.1a:
+- fixed Orb of Teleport/Illusion thinking that they are unusable
+- Orb of Earth no longer marked useless in Wetland
+- some fixes for the treasure/kill list: fixed the Onyx graphics; made some icons larger; dark stuff have their text brightened (or use the auxiliary orb color)
+- the monster movement order is more random now (no preference for clockwise)
diff --git a/hyper.h b/hyper.h
index f4fb0a23..428945dd 100644
--- a/hyper.h
+++ b/hyper.h
@@ -13,8 +13,8 @@
 #define _HYPER_H_
 
 // version numbers
-#define VER "12.1"
-#define VERNUM_HEX 0xA920
+#define VER "12.1a"
+#define VERNUM_HEX 0xA921
 
 #include "sysconfig.h"