diff --git a/docs/en/appendices/5-4-migration-guide.md b/docs/en/appendices/5-4-migration-guide.md
index 7f23cfc5c2..296ed8fcd4 100644
--- a/docs/en/appendices/5-4-migration-guide.md
+++ b/docs/en/appendices/5-4-migration-guide.md
@@ -19,6 +19,9 @@ bin/cake upgrade rector --rules cakephp54 <path/to/app/src>
 ### Commands
 
 - `BaseCommand::initialize()` is now being triggered **AFTER** arguments and options have been parsed.
+- Command instances are now added to the event manager by default. This means, that event hook methods
+like `beforeExecute` and `afterExecute` are always triggered. To avoid duplicate triggering you should remove
+any existing calls attaching a command to the event manager from your app code.
 
 ### Console