CHANGELOG.md in google-apis-chat_v1-0.55.0 vs CHANGELOG.md in google-apis-chat_v1-0.56.0

@@ -1,6 +1,10 @@
 # Release history for google-apis-chat_v1
 
+### v0.56.0 (2023-03-12)
+
+* Regenerated from discovery document revision 20230302
+
 ### v0.55.0 (2023-02-26)
 
 * Regenerated from discovery document revision 20230221
 
 ### v0.54.0 (2023-02-19)