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====Multi-Release==== A jar can be optionally marked as a multi-release jar. Using the multi-release feature allows library developers to load different code depending on the version of the Java runtime.<ref name="JEP 238: Multi-Release JAR Files">{{cite web | url=https://openjdk.java.net/jeps/238 | title=JEP 238: Multi-Release JAR Files | access-date=2021-02-06}}</ref> This in turn allows developers to leverage new features without sacrificing compatibility. A multi-release jar is enabled using the following declaration in the manifest: <syntaxhighlight lang="properties"> Multi-Release: true </syntaxhighlight>
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