[8FS_Bulau]

e.g. the Zuti thing. Presumably from what you say 1.2 incorporates "ZUTI DSMod v0.8 RC3.5" (whatever that is) so why would Zuti's final version be of concern? Presumably the 1.2 servers are in line? Is it something some people are likely to install over the top of 1.2?

ZUTI's final version was released over 3 months ago and is already in widespread use. Now out comes U.I.1.2 with an older version, which is not compatible with the final version. A server trying to be 1.2 compliant is going to use RC3.5, but there are several version out there in use. It's a matter of advertising which is in use. I would go with peybolman's advice, and keep it disabled unless required by the server.

And why would a server put an aircraft on the map that is not in 1.2? Are some people randomly adding other mods?

I was thinking of the case of a 1.2 server and a 1.1 client, but of course people may add other mods not in 1.2., like Peter D's new MiG and Sabre. The U.I. may be a standard, but it is not comprehensive.