About OPatch

OPatch is an Oracle-supplied Java-based utility that supports the following tasks:

  • Applying a patch
  • Rolling back a patch to a previous version
  • Listing the installed patches
  • Detecting a conflict when applying a patch after previous patches have been applied. It also suggests the best options to resolve a conflict

OPatch requires installation of the Oracle Universal Installer software. It is platform-independent and runs on all supported operating systems.

For more information, see "About OPatch" in Oracle Fusion Middleware Patching with OPatch.