CHANGELOG.md in google-apis-chat_v1-0.67.0 vs CHANGELOG.md in google-apis-chat_v1-0.68.0

@@ -1,6 +1,10 @@
 # Release history for google-apis-chat_v1
 
+### v0.68.0 (2023-08-13)
+
+* Regenerated from discovery document revision 20230806
+
 ### v0.67.0 (2023-08-06)
 
 * Regenerated from discovery document revision 20230801
 
 ### v0.66.0 (2023-07-23)