diff --git a/rhodecode/model/db.py b/rhodecode/model/db.py
--- a/rhodecode/model/db.py
+++ b/rhodecode/model/db.py
@@ -3851,19 +3851,11 @@ class ChangesetComment(Base, BaseModel):
     def immutable(self):
         return self.immutable_state == self.OP_IMMUTABLE
 
-    def outdated_at_version(self, version):
+    def outdated_at_version(self, version: int) -> bool:
         """
         Checks if comment is outdated for given pull request version
         """
 
-        # If version is None, return False as the current version cannot be less than None
-        if version is None:
-            return False
-
-        # Ensure that the version is an integer to prevent TypeError on comparison
-        if not isinstance(version, int):
-            raise ValueError("The provided version must be an integer.")
-
         def version_check():
             return self.pull_request_version_id and self.pull_request_version_id != version