manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<updates>
    <update>
        <name>JSolr</name>
        <description>Integrate Apache Solr with Joomla!.</description>
        <element>pkg_jsolr</element>
        <type>package</type>
        <version>3.0.0-beta</version>
        <client>0</client>
        <infourl title="JSolr">https://github.com/knowledgearcdotorg/jsolr/releases/tag/3.0.0-beta</infourl>
        <downloads>
            <downloadurl type="full" format="zip">https://github.com/knowledgearcdotorg/jsolr/releases/download/3.0.0-beta/pkg_jsolr.zip</downloadurl>
        </downloads>
        <tags>
            <tag>beta</tag>
        </tags>
        <targetplatform name="joomla" version="3.[789]" />
    </update>
</updates>