Solaris 11.3 vs Solaris 12
-- "Morrow says one of the difficulties MongoDB has encountered is figuring out Solaris' future, which he describes as “murky at best."
Solaris 11.4 will roll significant Solaris 12 features
-- That's a reference to Oracle's decision to bin Solaris 12 in favor of rolling updates to Solaris 11.3."
CI development is hardly a "bin" - no suffering through side-grades!