How To Upgrade Solr From 3.1 to 3.2 Without Reconfigure or Data Lost

Only replace t开发者_运维百科he start.jar or any other means?

Thanks :)

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start.jar is only a small wrapper to start up Jetty. It's not related to Solr. When upgrading, always see the release notes first (here are the release notes for 3.2, there are no breaking changes), make the changes indicated there, then replace your solr.war and other apache-solr*.jar with the ones in the dist directory in the 3.2 distro.