Oracle Configuration : Oracle Patches

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New patching approach: Oracle Release Updates (RU) and Release Update Revisions (RUR)

Since Oracle Database 12.2.0.1 the patching model is changed, switching from Patch Set Updates (PSU) and Proactive Bundle Patches (BP) to Release Updates (RU) and Release Update Revisions (RUR). There is one exception: the Windows Operating System. There won’t be any changes on the Windows platform. On Windows you’ll see exactly the same patching format with Bundle Patches as you saw before.

What are Release Update (RU) and Release Update Revision (RUR) ?

  • RU's are similar to the former Bundle Patches and are cumulative as well. They contain fixes in 4 area's: optimizer, functional, security and regression.
  • RUR will be released usually a quarter after the first Release Update (RU). It will include all fixes from Release Update 1 (RU-1) – and add only new security and regression fixes on top. But no new optimizer or functional fixes.

Patch Set Updates versus Bundle Patch

As PSUs and BPs, each are cumulative you’ll get the fixes from all previous PSUs or BPs for the same release included as well. The PSU a quarter later has new security fixes and new regression fixes added, the Bundle Patch in addition gets new optimizer and functional fixes and of course the same new security and regression fixes the PSU has gotten.

  • A Patch Set Update (PSU) contains usually security fixes and regression fixes, i.e. bug fixes.
  • A Proactive Bundle Patch (BP) was a superset of a PSU containing the PSU but optimizer fixes and functional fixes which may be sometimes feature extensions as well.