I had version 0.9.2.7 and updated to the most recent one, but this is what happened:
1. My config was lost in the update (would've liked to be told this info would not carry over like with most plugins)
2. The new version applied only one config to every subdomain in my multisite install. the plugin says it's "enabled in community mode", but I can't find a way to turn community mode off because...
3. Right after activating the plugin, I get an Internal Server Error and I'm forced to delete the extra code added to my htaccess file as well as all folders and files that W3TC creates upon activation in order for my dashboard to reappear.
Mind, I tried to play ball with the new update after erasing my (up until then) working w3tc install and its files and then installing a fresh copy of the new version. I would like to be able to configure an individual setup for each subdomain in my network, but I don't see how that's possible.