diff --git a/Changes b/Changes
index a522f7a..7ad8452 100644
--- a/Changes
+++ b/Changes
@@ -1,4 +1,4 @@
-0.64.7 2026-04-28
+0.64.7 2026-04-29
     - [bugfix] Keep highlights that extend beyond a cut match
       (diewald; fixes #177; diewald; AI-assisted Claude Opus 4.6)
     - [bugfix] Correctly handle foundry and layer in attribute groups
@@ -10,6 +10,8 @@
       (fixes #121; diewald; AI-assisted Claude Opus 4.6)
     - [bugfix] Fix regex alternation in non-enclosed groups
       (fixes #243; diewald; AI-assisted Claude Opus 4.6)
+    - [bugfix] Preserve negation of a single operand inside a
+      collection group (fixes #178; diewald; AI-assisted Claude Opus 4.6))
 
 0.64.6 2026-03-09
     - [performance] Add leaf cache. (diewald)