Oracle recently announced the availability of Oracle Database 12c release 2 (12.2) for on-premises servers.
Linux x86-64, Solaris SPARC and Solaris x86-64: 15-Mar-2017
Other supported platforms (Windows x86-64, IBM AIX on POWER, IBM Linux on System z, HP UX Itanium): Q2CY2017
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MOS DOc ID 742060.1