it is correct, so far there are no mod_svn VC9 builds. Is there any reason why you can't use VC11 binaries?
Well, the fact that our current Apache installation is a VC9 build is the reason. VC11 built svn module wouldn't work with VC9 built apache, or would it?
On the other hand, I guess the upgrade to VC11 built apache wouldn't be that bad as we only need to update mod_php, mod_wsgi and mod_svn along with it. Our current mod_svn is built using VC6 and it works, sort of, except for "svn lock".