The CHANGES.txt file (make sure to look in the Lucene version as well as Solr) will have, for each new version, a section about "upgrading from...." that should answer for you...
Best Erick On Mon, Aug 20, 2012 at 3:13 AM, Dominique Bejean <dominique.bej...@eolya.fr> wrote: > Hi, > > I think the response is yes, but I need to check. > > Is it possible to upgrade from solr 3.4 to solr 3.6.1 without rebuilding the > existing index ? > > Thank you. > > Dominique
