I just updated to 0.9.2.7 and then got the message that I had to update my conf-file. So I pressed "automatic" and then restarted nginx to read in the new conf-file.
But then my site was no longer accessible. I get error "File not found" on my front page.
My error.log say:
2013/02/06 13:47:30 [error] 24164#0: *26 open() "/www/domain.com/public_html/wp-content/cache/page_enhanced/www.domain.com///_index.html_gzip" failed (2: No such file or directory), client: 126.96.36.199, server: http://www.domain.com, request: "GET / HTTP/1.1", host: "www.domain.com"
I had to disable W3TC and then it all started to work again. My site is now up.
There seems to be something wrong with the conf-file?