Jersey User Guide: Jackson 2.14 -> 2.15 migration

Signed-off-by: Maxim Nesen <maxim.nesen@oracle.com>

docs/src/main/docbook/migration.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!--
 
-    Copyright (c) 2012, 2021 Oracle and/or its affiliates. All rights reserved.
+    Copyright (c) 2012, 2023 Oracle and/or its affiliates. All rights reserved.
 
     This program and the accompanying materials are made available under the
     terms of the Eclipse Public License v. 2.0, which is available at
@@ -28,6 +28,18 @@
          xml:id="migration">
     <title>Migration Guide</title>
 
+    <section xml:id="mig-3.0.11">
+        <title>Migrating from Jersey 3.0.11 to 3.0.12</title>
+        <section xml:id="mig-3.0.11-jackson-changes">
+            <title>Changes in Jackson</title>
+            <para>
+                Jersey 3.0.12 starts to support Jackson 2.15 which comes with default limitations for the length of parsed text,
+                numbers, and nesting depth. Jersey keeps the Jackson default value, but it allows to override the maximum
+                length of parsed text using the &jersey.message.MessageProperties.JSON_MAX_STRING_LENGTH; property if needed.
+            </para>
+        </section>
+    </section>
+
     <section xml:id="mig-3.0.0">
         <title>Migrating from Jersey 2.32+ to 3.0.x.</title>
         <section xml:id="mig-3.0.0-breaking-changes">