The new Shadowlands raid, Castle Nathria, will become available to access after today’s maintenance and we’ve just sent out a new update that polishes the our guide for the Raid. You can easily find it from the Featured section of the Guide menu. To access the update, all you need is a Zygor Elite subscription which you can sign up for here.
If you’re already an Elite member you can find instructions on how to update your guides here: