[Dovecot] FTS what to use ?

Hi

I'm currently using dovecot 2.0 with squat fts which does a nice job. However I'm thinking about upgrading to dovecot 2.1 and the wiki isn't clear about which fts can or should be used with it.

Is squat support dead ? As the wiki mentions that the config syntax is obsolete, I'm not sure if squat is obsolete also ? If not, what is the new syntax ?

But in the case squat is dead.. what is the recommended alternative nowadays ? I don't really need substring search, but it is a nice thing to have.

PS : I will be using dovecot 2.1 with maildir

thanks

erik