User Dversion Values
unclustered (unsupported)
clustered, not pics (unsupported)
clustered
weekuserusage populated (Note: this table is now obsolete)
userproplite2 clustered, and cldversion on userproplist table
S1 styles and overrides clustered
clustered memories, friend groups, and keywords (for memories)
clustered userpics, with keyword limiting and comment support
clustered polls
Source: cgi-bin/LJ/Constants.pm