Document ON ERROR RETRY (#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

@@ -309,6 +309,34 @@ RETURN cosh(0.5), coth(0.5), sinh(0.5), tanh(0.5)
 For more information, see xref:functions/mathematical-trigonometric.adoc[Mathematical functions - trigonometric].
 |===
 
+[[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