L. Arnold's picture

Back to the original Xcache Apc Conflict....

Magento Connect is throwing a Maintenance Flag but not allowing any meaning ful updates.

Will Run a TKLBAM restore to get back to where we were. 

Found a refernce to apc.so in conf.d that should allow a more traditional upgrade (discussed last week).

Don't follow the above path unless you just want to install your data to a fresh install.  Extensions are very problematic, as is Magento Connect and Upgrading, as we can see with all this.