Solr 9 is an unreleased major version, so it lives in *master*. Once the release process starts for Solr 9, it will live at *branch_9x*, and *master* will host Solr 10.
On Tue, Mar 2, 2021 at 3:49 PM Phill Campbell <sirgilli...@yahoo.com.invalid> wrote: > I have just begun investigating Solr source code. Where is the branch for > Solr 9? > > >