diff --git a/CHANGELOG.md b/CHANGELOG.md
index 446992f8..719c58e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 4.10.0 - 2025-06-13
+
+- fix: no longer fail in autocapture.
+
 ## 4.9.0 - 2025-06-13
 
 - feat(ai): track reasoning and cache tokens in the LangChain callback
diff --git a/posthog/client.py b/posthog/client.py
index a6ce4423..707dcfc5 100644
--- a/posthog/client.py
+++ b/posthog/client.py
@@ -708,7 +708,7 @@ def capture_exception(
             )
 
             # Mark the exception as captured to prevent duplicate captures
-            if exception is not None:
+            if exception is not None and isinstance(exception, BaseException):
                 setattr(exception, "__posthog_exception_captured", True)
 
             return res
diff --git a/posthog/version.py b/posthog/version.py
index f19455b9..242fe013 100644
--- a/posthog/version.py
+++ b/posthog/version.py
@@ -1,4 +1,4 @@
-VERSION = "4.9.0"
+VERSION = "4.10.0"
 
 if __name__ == "__main__":
     print(VERSION, end="")  # noqa: T201