diff --git a/CHANGELOG.md b/CHANGELOG.md
index f978f28..d0e87d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [development]
 
+### Fixed
+
+- An installation running the newest release was offered an update to the
+  same version: the recorded version and the release tag compared unequal
+  through their leading `v`. The comparison now accepts both shapes, so
+  v1.0.0 against 1.0.0 is no update at all, and the update button can no
+  longer reinstall the version that is already running.
+
 ### Added
 
 -