Hi, Maybe you are referring to SolrJ? Generally speaking, SolrJ has been very compatible communicating to many backend Solr server versions. I wish we tracked problems about this specifically somewhere, but I don't think we do. I suggest simply using the latest SolrJ release. If you find issues, report them. Again, assuming SolrJ, it's good to have some flexibility on which SolrClient subclass is used. There's Cloud vs not (i.e. standalone), there's newer HTTP2 vs not. There's Cloud talking directly to ZooKeeper for cluster state, or there's via Solr HTTP.
~ David Smiley Apache Lucene/Solr Search Developer http://www.linkedin.com/in/davidwsmiley On Tue, Oct 27, 2020 at 12:07 PM Piotr Szuberski < [email protected]> wrote: > Hi, > > We are working on dependency updates at Apache Beam and I would like to > consult which versions should be supported so we don't break any existing > users. > > Previously the supported Solr version was 5.5.4. > > Versions 8.x.y and 7.x.y naturally come to mind as they are the only not > deprecated. But maybe there are users that use some earlier versions? > > Are these versions backwards-compatible or there are things to be aware of? > > Regards, > Piotr >
