Rocker cover gasket

A new rocker cover gasket was also included in the “swap package”. Some days ago I found out the current one isn’t that fresh anymore, so the new one is quite a good occasion. Or is it?

The ‘new old stock’ gasket is a flat one while the old one has a fitting edge… Investigating the part number results in ‘rocker cover gasket for a single VANOS m50’.

This is how the current gasket looks like:

I will give the old one a go at first, I might want to exchange it for a fresh one later on.