Quite a few patch updates from Oracle related to Oracle EPM Suite. You can find more about this on Support blog at " December EPM "Patch Set Updates" released (updated) ". You need to have a support ID to actually download the patches. Would recommend you to update these patches to avoid any issues that you might face. We had an issue recently and the Essbase Database (we are on 11.1.2.2) was corrupted and we had to restore it from Backup. We have not seen that issue before and we went through the patch readme document and we are in the process of applying that patch to our system. Hope this information helps.
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