Hello, I'm using solr 1.3 with solr.py.   We have a basic schema.xml,
nothing custom or out of the ordinary.
I need the following the feature from ....
http://svn.apache.org/repos/asf/lucene/solr/trunk/CHANGES.txt

SOLR-911: Add support for multi-select faceting by allowing filters to be
    tagged and facet commands to exclude certain filters.  This patch also
    added the ability to change the output key for facets in the response, and
    optimized distributed faceting refinement by lowering parsing overhead and
    by making requests and responses smaller.

Since this requires 1.4, looks like I have to upgrade (or roll my own
solution that this feature provides.)
I'm looking for a bit of advice.  I have looked through the bugs here
http://issues.apache.org/jira/browse/SOLR/fixforversion/12313351

1.  I would need to get the source for 1.4 and build it, right?  No
release yet, eh?
2.  Any one using 1.4 in production without issue; is this wise?  Or
should I wait?
3.  Will I need to make changes to my schema.xml to support my current
field set under 1.4?
4.  Do I need to reindex all my data?

thanks
gene

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