I've noticed there's a "System maintenance" banner at the top of the Organization tab.
This informs that AGOL is undergoing maintenance on March 19th, 2019 between the times of 5pm and midnight PST.
Is there anyway to see additional information about the maintenance? i.e. which services will be affected (if affected at all)
it does inform that " you may experience some minimal disruption during this maintenance period." Would be helpful knowing what that distruption might be, as you would expect from a SaaS.