diff --git a/reference_guide/api_changes_list_2021.md b/reference_guide/api_changes_list_2021.md
index 2fe85ed24..6d368b2a4 100644
--- a/reference_guide/api_changes_list_2021.md
+++ b/reference_guide/api_changes_list_2021.md
@@ -111,6 +111,9 @@ Please see [Incompatible API Changes](api_changes_list.md) on how to verify comp
 `org.jetbrains.uast.UAnnotated.getUAnnotations()` marked abstract
 : Previously this circulary referenced `org.jetbrains.uast.UAnnotated.getAnnotations()`, which has been removed.
 
+`com.jetbrains.performancePlugin.CommandProvider.getCommands()` method return type changed from `java.util.List` to `java.util.Map`
+: Use `java.util.List` instead of `java.util.Map`.
+
 ### Database Plugin 2021.2
 
 `com.intellij.database.dataSource.DatabaseCredentialsAuthProvider.UserWidget` class removed