Personally, I'd go with a nightly build for your situation - just
makes it easier (for me at least) to support and fix if there are any
issues, and you'll benefit from great new features as well (stats
component, java replication, etc).
The one drawback is if any of those patches don't keep
My current pre-production Solr install is a 1.3 pre-release build, and
I think I'm going to update to a more recent version before an
upcoming product release. Actually, "release" is probably a bit of an
exaggeration; it's more of an alpha test, or perhaps a beta test.
Anyway, the question is which