Upgrading Tika "in place"

[Tod]

I'm running an older version of Solr - 3.4.0.2011.09.09.09.06.17.  It 
seems the version of Tika that came with it has trouble with some PDF 
files and newer Office documents.  I've checked the latest Tika release 
and it solves these problems.

I'd like to just drop in the necessary Tika jars without needing to 
rebuild or upgrade Solr.  Is that a possibility and if so how would I go 
about accomplishing it?  I see tika-core and tika-parsers in the 3.6.2 
Solr build distro, is that the only two files I need?


Thanks - Tod