Deprecate existingDataSeedInstance option to CREATE DATABASE (#1047)

Replace with new option `existingDataSeedServer`

Documenting neo-technology/neo4j#27123

---------

Co-authored-by: Jens Pryce-Åklundh <[email protected]>

Author: mnd999

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

@@ -16,6 +16,45 @@ 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-5.25]]
+== Neo4j 5.25
+
+=== Deprecated features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+
+a|
+label:functionality[]
+label:deprecated[]
+[source, cypher, role="noheader"]
+----
+CREATE DATABASE db OPTIONS { existingDataSeedInstance: ... }
+----
+| The `CREATE DATABASE` option `existingDataSeedInstance` has been deprecated and replaced with the option link:{neo4j-docs-base-uri}/operations-manual/{page-version}/database-administration/standard-databases/create-database/#manage-databases-create-database-options[`existingDataSeedServer`]. The functionality is unchanged.
+|===
+
+=== New features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+
+a|
+label:functionality[]
+label:new[]
+[source, cypher, role="noheader"]
+----
+CREATE DATABASE db OPTIONS { existingDataSeedServer: ... }
+----
+| The option link:{neo4j-docs-base-uri}/operations-manual/{page-version}/database-administration/standard-databases/create-database/#manage-databases-create-database-options[`existingDataSeedServer`] has been added to `CREATE DATABASE`. The functionality is the same as the deprecated option `existingDataSeedServer`, which this replaces.
+|===
+
+
+
 [[cypher-deprecations-additions-removals-5.24]]
 == Neo4j 5.24