You may be concerned that Solaris has an uncertain future. Fear not, Oracle are planning to support Solaris 11 and subsequent Solaris 11 versions until at least 2031. That’s regular, full-blown, Premier Support. If that wasn’t enough there will also be a regular period of extended support to take it to 2034. SPARC and Solaris capable x86 servers have a great future and longevity of service. The current SPARC range is vast and Oracle’s second best selling large Engineered System is the SPARC SuperCluster.
A beta version of Solaris 11.4 is available for download now. Google Solaris 11.4 Beta for a complete list of resources and downloadable presentations. To see what’s new (pre-release, subject to change) see https://docs.oracle.com/cd/E37838_01/html/E60974/index.html