Database Week: PSUs and overlay patches

While you may know what PSUs are (Patch Set Updates), do you know what overlay patches are?  Are you aware that the My Oracle Support post "Database Patch Set Update Overlay Patches Required for Use with PSUs and Oracle E-Business Suite" document ID 1147107.1 has all the information and is a great candidate for being favorited so you can stay up to date?  Well now you know!