My solr An update to the extraction handler stopped working after upgrading from 4.0 to 4.2
When I upgraded from solr 4.0 to 4.2, suddenly all files downloaded using / update / extract stopped working. I noticed that the class is missing.
I solved this by making changes to solrconfig (from 4.2) with the changes I had in 4.0.
Because of these issues, I am wondering what is the best way to upgrade from Solr 4.0 to 4.2? (or any other version)
I just copied a new war, the dist folder and the Contrib folder, and that would be nice, but that's for sure. I know re-indexing is recommended.
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