Look at CHANGES.txt for both Lucene and Solr, there's always an "upgrading" section for each release.
Best, Erick On Fri, Apr 17, 2015 at 5:31 AM, Toke Eskildsen <t...@statsbiblioteket.dk> wrote: > Vincenzo D'Amore <v.dam...@gmail.com> wrote: >> I have a SolrCloud cluster with 3 server, I would like to use stats.facet, >> but this feature is available only if I upgrade to 4.10. > >> May I simply redeploy new solr cloud version in tomcat or should reload all >> the documents? >> There are other drawbacks? > > Support for the Disk-format for DocValues was removed after 4.8, so you > should check if you use that: DocValuesFormat="Disk" for the field in the > schema, if I remember correctly. > > - Toke Eskildsen
