After upgrading two of my sites to 0.9.2.11, I noticed that the usual:
<!-- Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/
Minified using disk: basic
Page Caching using disk: enhanced
Database Caching 10/19 queries in 0.003 seconds using disk: basic
Object Caching 2395/2402 objects using disk: basic
Content Delivery Network via static.trianglenewhome.com
Served from: trianglenewhome.com @ 2013-06-06 22:38:01 by W3 Total Cache -->is missing when viewing the page source in any browser.
Is this by design? The plugin appears to be working just fine....