Sphinx 3.0 is now available at http://sphinxsearch.com/downloads/current/ and it is the suggested and actively maintained release.
The sources for 3.0 will also be posted here when we decide to make those publicly available.
If you need source access to 3.0 right now (commercial/delayed FOSS mode), please contact via http://sphinxsearch.com/about/contact/ or email me directly at shodan (at) sphinxsearch (dot) com
I realized that version 3 was paid and will not appear in the ports?
Not understood.Either way, Sphinx 3 doesn't look like a straightforward upgrade and would be better served by a separate port. Feel free to submit one.