There are news about the new Oracle Database release schedule. Oracle updated MOS Note 742060.1 containing release information recently.
A few weeks ago we changed from PSUs and BPs to RURs (Release Update Revisions) and RUs (Release Updates) beginning with Oracle Database 12.2.
And now MOS Note 742060.1 – Release Schedule of Current Database Releases is updated as well.
News about the new Oracle Database Release Schedule
Release 12.2: New releases will be annual and the version will be the last two digits of the release year. The release originally planned as 188.8.131.52 will now be release 18. Please see MOS Note 742060.1 – Release Schedule of Current Database Releases: for further details and an especially explanation about the support schedule.
Instead of Patch Sets, Patch Set Updates, and Database Bundle Patches, the new releases will be maintained with Release Updates (RU) and Release Update Revisions (RUR). For more information see Release Update and Release Update Revisions for Database Proactive Patch Program (Doc ID 2285040.1)
Please see also: More Information about RU and RUR patches for Oracle 12.2