Add CHANGELOG

Author: basepi

CHANGELOG.asciidoc

@@ -30,6 +30,20 @@ endif::[]
 //===== Bug fixes
 //
 
+=== Unreleased
+
+// Unreleased changes go here
+// When the next release happens, nest these changes under the "Python Agent version 5.x" heading
+[float]
+===== Features
+
+
+[float]
+===== Bug fixes
+
+* Fix for potential `capture_body: error` hang in Starlette/FastAPI {pull}1038[#1038]
+
+
 [[release-notes-6.x]]
 === Python Agent version 6.x