Improve emoji detection and support

Change-Id: Ie245920a51d64e934522a26eb378d350d69f5a98
diff --git a/Changes b/Changes
index 106a58c..c489fa7 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,7 @@
-0.51 2023-08-25
+0.51 2023-12-23
         - Support ICC meta.
         - Fix date handling for years of length < 2.
+        - Improve emoji detection (rebecca).
 
 0.50 2023-02-13
         - Fix 'temporary-extract' configuration