Hi, You'll need to reindex.
Upgrade of index is supported from one major version below. Regards Puneet On Wed, 21 Apr, 2021, 12:32 shacky, <shack...@gmail.com> wrote: > Hi, > I have a very old Solr installation (VERY old: Solr 1.4.1 running on Ubuntu > 12.04) which I would like to upgrade to the latest Solr version 8.8.2 on > Debian Buster. > > Will I be able to migrate the index or should I reindex all documents? > > Thank you very much! > Bye >
