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| <div class="section"><h2>Release Change Logs<a name="Release_Change_Logs"></a></h2> |
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| <p><a href="jira-report.html#a1.0-alpha1">JIRA change log</a></p> |
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| <p>Apache Log4j 2 is not compatible with the previous versions. Please have the following in mind |
| when upgrading to Log4j 2 in your project:</p> |
| |
| <ul> |
| <li>Java 6 is required</li> |
| <li>The XML configuration has been simplified and is not compatible with Log4j 1.x</li> |
| <li>Configuration via property files is not supported.</li> |
| <li>Configuration via JSON or YAML is supported.</li> |
| <li>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.</li> |
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