That should be OK. There were no code changes necessary for that upgrade. see SOLR-13363
> On Feb 12, 2020, at 5:34 PM, Rahul Goswami <rahul196...@gmail.com> wrote: > > Hello, > We are running a SolrCloud (7.2.1) cluster and upgrading to Solr 7.7.2. We > run a separate multi node zookeeper ensemble which currently runs > Zookeeper 3.4.10. > Is it also required to upgrade Zookeeper (to 3.4.14 as per change.txt for > Solr 7.7.2) along with Solr ? > > I tried a few basic updates requests for a 2 node SolrCloud cluster with > the older (3.4.10) zookeeper and it seemed to work fine. But just want to > know if there are any caveats I should be aware of. > > Thanks, > Rahul
