Document max identifier length (neo4j#1077)

Author: JPryce-Aklundh

modules/ROOT/pages/deprecations-additions-removals-compatibility.adoc

@@ -415,6 +415,27 @@ The maximum limit is set to 16,383 characters in an identifier.
 This means that node labels, relationship types, and property keys cannot include more than 16,383 characters.
 |===
 
+=== Updated features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+
+a|
+label:functionality[]
+label:updated[]
+[source, cypher, role="noheader"]
+----
+CREATE (n:Label {property: 'name'}, 
+()-[r:REL_TYPE]->()
+----
+| Neo4j's link:{neo4j-docs-base-uri}/operations-manual/{page-version}/database-internals/store-formats/#store-format-overview[block format] now implements xref:appendix/gql-conformance/index.adoc[GQL's] limit on the maximum length of identifiers.
+
+The maximum limit is set to 16,383 characters in an identifier.
+This means that node labels, relationship types, and property keys cannot include more than 16,383 characters.
+|===
+
 === New features
 
 [cols="2", options="header"]