Hi there! So I'm considering purchasing a new Mac Mini and setting up a server OS on it. My question is, when Apple releases macOS Sierra this fall will there be a new version of the server OS as well? I'm thinking that if the server OS is going to change then I'll wait 2-3 months and just buy the new Mini with Sierra and then pay the extra $20 for the new server OS at that time. If the server OS is not changing then I'll just buy it now and do the $20 upgrade to OS X El Capitan server. I also have 2-3 other Macs at home that I do plan on upgrading to Sierra when it's out, are there any interaction issues between Sierra and OS X El Capitan server? Thanks in advance!