CHANGELOG.md in google-apis-chat_v1-0.17.0 vs CHANGELOG.md in google-apis-chat_v1-0.18.0

@@ -1,6 +1,10 @@
 # Release history for google-apis-chat_v1
 
+### v0.18.0 (2021-11-13)
+
+* Regenerated from discovery document revision 20211106
+
 ### v0.17.0 (2021-10-29)
 
 * Regenerated from discovery document revision 20211022
 
 ### v0.16.0 (2021-10-22)