Error messages are deprecated

Author: renetapopova

modules/ROOT/pages/changes-deprecations-removals.adoc

@@ -558,6 +558,13 @@ For more information, see xref:clustering/databases.adoc#s3-seed-provider[Seed f
 
 Since Neo4j 5.26, the server-side Notification API and the `getNotifications()` method of the Result Core API are deprecated.
 
+=== Neo4j error codes messages
+
+Starting from 2025.04, the messages of the Neo4j error codes are deprecated and will be removed in a future release.
+
+Please use the GQLSTATUS error codes instead.
+See link:{neo4j-docs-base-uri}/status-codes/current/errors/gql-errors/[Status Codes for Errors & Notifications -> List of GQLSTATUS error codes] for details.
+
 == Changes in Neo4j 2025.x
 
 The section covers changes to Neo4j server functionality across different areas.