| //// |
| 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 Changelog |
| |
| link:jira-report.html[JIRA-generated changelog] |
| |
| link:changes-report.html[Manual change log] |
| |
| Apache Log4j 2 is not compatible with the previous versions. Please have the following in mind when upgrading to |
| Log4j 2 in your project: |
| |
| * Log4j 2.4 and greater requires Java 7, versions 2.0-alpha1 to 2.3 required Java 6. |
| * The XML configuration has been simplified and is not compatible with Log4j 1.x. |
| * Configuration via property files is supported from version 2.4, but is not compatible with Log4j 1.x. |
| * Configuration via JSON or YAML is supported, but these formats require |
| link:runtime-dependencies.html[additional runtime dependencies]. |
| * Although Log4j 2 is not directly compatible with Log4j 1.x a compatibility bridge has been provided to reduce the |
| need to make coding changes. |
