doc: Prepare release notes for version 2.25.1

Author: ppkarwasz

pom.xml

@@ -279,7 +279,7 @@
   <scm child.scm.connection.inherit.append.path="false" child.scm.developerConnection.inherit.append.path="false" child.scm.url.inherit.append.path="false">
     <connection>scm:git:https://github.com/apache/logging-log4j2.git</connection>
     <developerConnection>scm:git:https://github.com/apache/logging-log4j2.git</developerConnection>
-    <tag>rel/2.25.0</tag>
+    <tag>rel/2.25.1</tag>
     <url>https://github.com/apache/logging-log4j2</url>
   </scm>
 
@@ -307,11 +307,11 @@
   <properties>
 
     <!-- project version -->
-    <revision>2.25.1-SNAPSHOT</revision>
+    <revision>2.25.1</revision>
     <!-- Versions used on the site: no snapshots! -->
-    <site-log4j-api.version>2.25.0</site-log4j-api.version>
-    <site-log4j-core.version>2.25.0</site-log4j-core.version>
-    <site-log4j-layout-template-json.version>2.25.0</site-log4j-layout-template-json.version>
+    <site-log4j-api.version>2.25.1</site-log4j-api.version>
+    <site-log4j-core.version>2.25.1</site-log4j-core.version>
+    <site-log4j-layout-template-json.version>2.25.1</site-log4j-layout-template-json.version>
 
     <!-- =================
          Common properties

src/changelog/2.25.1/.release-notes.adoc.ftl

@@ -0,0 +1,30 @@
+////
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         https://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+////
+
+[${'#release-notes-' + release.version?replace("[^a-zA-Z0-9]", "-", "r")}]
+== ${release.version}
+
+<#if release.date?has_content>Release date:: ${release.date}</#if>
+
+This patch release addresses a dozen bugs in version `2.25.0`, in particular:
+
+* Resolves a concurrency issue in the new unified datetime formatter.
+* Fixes build failures affecting Gradle users.
+* Restores backward compatibility with Spring Boot’s common logging configuration.
+* Improves handling of edge cases in GraalVM support.
+
+<#include "../.changelog.adoc.ftl">

src/changelog/2.25.1/.release.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to the Apache Software Foundation (ASF) under one or more
+  ~ contributor license agreements.  See the NOTICE file distributed with
+  ~ this work for additional information regarding copyright ownership.
+  ~ The ASF licenses this file to you under the Apache License, Version 2.0
+  ~ (the "License"); you may not use this file except in compliance with
+  ~ the License.  You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<release xmlns="https://logging.apache.org/xml/ns"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="https://logging.apache.org/xml/ns https://logging.apache.org/xml/ns/log4j-changelog-0.xsd"
+         date="2025-07-08" version="2.25.1"/>