Error about ADO code level while trying to apply RPC 17774755

Hi Apps 12.1.3

I am trying to apply RPC patch 17774755 and adpatch is failing with the following error:

AutoPatch error:
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Missing prerequisite codelevel for entity 'ado'.

This patch requires the following codelevel or higher: 'R12.ADO.B.4'.
The current on-site codelevel for the entity 'ado' is : 'R12.ADO.B.3'.

In order to apply this patch you must first apply a patch that introduces
at least the minimum required codelevel.

You may merge this patch with a patch that introduces the required codelevel.
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I have searched to find the patch for 'R12.ADO.B.4' but can't find it anywhere.