MSA change to roll cage specs

[majordad]

I'm told that after a recent court case the MSA have changed the specs for cages. I cant post a link or diagram here but essentially it is an extra bar running from the roof to the floor on each side. It is positioned inside the A Pillar bar. Does anyone know about this ? What I heard was that it had to be done to all cages that needed it at once.

[majordad]

I've a Matter Cage in my 993 Cup, I wonder will that do, they say not . Dont really want to go adding bits to my Porsche RSR Cage.