Product Update - 21.1.1 on installations with Check for new Versions switched off

I understand the reasons for releasing the update the way you did, but...

 

I guess this will not update a lot of systems where 'Check for new Versions' is switched off. I have a lot of systems running this way to 'protect' against unwanted upgrades, untill they are stable.

 

Questions for Tony : Is the above true? Is  this update mandatory and what will happen if the Update is not applied?

 

Regards, Hugo