As we have always done and in the spirit of the similar post from the old forums, this year we’ll be making the usual round of deprecations by Fall.
• iOS 8 support will be removed roughly in the Fall timeframe as part of adding iOS 10 support. (presumed) The new minimum will be the latest Y version of iOS 9 in that time, at least 9.3.
• Mac OS X 10.9 support in Simple Sync will be removed in the same timeframe. The new minimum will be 10.10.