Do not allow optional Lucene Regex Queries

Change-Id: Iceb8c15eb9767969c9e0401bc0d962d637e47bae
diff --git a/Changes b/Changes
index 8a924fa..a3e09db 100644
--- a/Changes
+++ b/Changes
@@ -1,8 +1,9 @@
-0.64.5 2025-11-21
+0.64.5 2025-12-03
     - [maintenance] Update to Java 21 (diewald)
     - [enhancement] Alter vcNamePattern to allow system VC names with less 
       than 3 characters (margaretha)
     - [bugfix] Making totalResult counter long to prevent overflows (diewald)
+    - [bugfix] Do not allow optional Lucene Regex extensions (diewald)
 
 0.64.4 2025-09-17
     - [feature] Added --progress option to Krill-Indexer (kupietz)