diff --git a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_29.rst b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_29.rst
index 3d5cbf1a4..2477fc6b5 100644
--- a/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_29.rst
+++ b/developer_manual/app_publishing_maintenance/app_upgrade_guide/upgrade_to_29.rst
@@ -60,7 +60,7 @@ Deprecated APIs
 Removed APIs
 ^^^^^^^^^^^^
 
-* tbd
+* ``OCP\Log\ILogFactory::getCustomLogger``: use ``\OCP\Log\ILogFactory::getCustomPsrLogger`` to get a customized :ref:`PSR3 <psr3>` logger
 
 Added events
 ^^^^^^^^^^^^
@@ -80,4 +80,4 @@ Removed events
 Changed behavior
 ^^^^^^^^^^^^^^^^
 
-The dashboard no longer loads the sidebar or Viewer scripts, if your dashboard widget relies on this it should emit the required events itself.
\ No newline at end of file
+The dashboard no longer loads the sidebar or Viewer scripts, if your dashboard widget relies on this it should emit the required events itself.