diff --git a/doc/api_break.dox b/doc/api_break.dox
index be2a98f1d6be..962b172c4b6c 100644
--- a/doc/api_break.dox
+++ b/doc/api_break.dox
@@ -2231,6 +2231,7 @@ object of type QgsProcessingFeedback, and will need to adapt their use of progre
 - algList was removed. Use QgsApplication.processingRegistry() instead.
 - Processing.algs was removed. QgsApplication.processingRegistry().algorithms() instead.
 - ProcessingLog should not be used when reporting log messages from algorithms. Use QgsMessageLog.logMessage() instead.
+- dataobjects.getLayerFromString() was removed. Use QgsProcessingUtils.mapLayerFromString() instead.
 
 Triangulation        {#qgis_api_break_3_0_Triangulation}
 -------------