Despite what the Message Center says about the new MailItemsAccessed not being rolled out until February 1, it has already been applied to my tenant.
Updated feature: Exchange Online mailbox audit to add mail reads by default MC171679 Prevent or Fix Issues Published On : January 4, 2019
Under the heading "What do I need to do to prepare for this change?" it states that those (my tenant) that have already configured auditing before need to "audit the two new mailbox actions. Please click on Additional Information for details".
Clicking on Additional Information takes one to a page that is way out of date with no new information.
Internet searching turns up nothing, so my question is where's the information so that I can update my users Audit settings to reflect this new change?