Document ON ERROR RETRY (neo4j#1203)

Note: This feature is no longer earmarked for Cypher 25, but will be
part of Cypher 5 in the 2025.03 release.

Author: JPryce-Aklundh

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

@@ -16,6 +16,34 @@ New features are added to the language continuously, and occasionally, some feat
 This section lists all of the features that have been removed, deprecated, added, or extended in different Cypher versions.
 Replacement syntax for deprecated and removed features are also indicated.
 
+[[cypher-deprecations-additions-removals-2025.03]]
+== Neo4j 2025.03
+
+=== New features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+
+a|
+label:functionality[]
+label:new[]
+[source, cypher, role=noheader]
+----
+UNWIND range(1, 100) AS i
+CALL (i) {
+    MERGE (u:User {id: i})
+    ON CREATE SET u.created = timestamp()
+} IN TRANSACTIONS ON ERROR RETRY 1 SECOND THEN FAIL
+----
+
+| New error handling option for `CALL { ... } IN TRANSACTIONS`: `ON ERROR RETRY`.
+This option applies an exponential delay between retries for transaction batches failing due to transient errors, with an optional maximum retry duration, and handles failure based on a specified fallback error mode if the transaction does not succeed within the given time.
+For more information, see xref:subqueries/subqueries-in-transactions#on-error-retry[`CALL` subqueries in transactions -> `ON ERROR RETRY`].
+
+|===
+
 [[cypher-deprecations-additions-removals-2025.01]]
 == Neo4j 2025.01