It all depends on what typoe of management you wish to do.
Deployment Server 6.9 SP6 supports Windows 8.x, and so does 7.5 HF3 I beleiev (HF4 is already out).
There are plenty of 7.5 documents that you should read concerning migrating.
Searching Connect as well as the KB for issues should also be a priority, especially as some users are already warning people to wait for the first service pack, which is what most large customers do anyway.