CHANGELOG.md in unicode-x-11.0.0 vs CHANGELOG.md in unicode-x-12.0.0

@@ -1,6 +1,10 @@
 # Change Log
 
+## 12.0.0
+
+- Unicode 12
+
 ## 11.0.0
 
 - Unicode 11
 - New version policy: `Unicode::X`'s major version is now synced to Unicode's.
 - Do not bundle unicode_normalize (it's in stdlib anyways)