Received eBay message to update listings but no listings are identified

[city*satins]

I got a message this morning from eBay titled:  

Update your listings now to ensure they comply with recent security, policy and listing requirements updates.

But no listings are identified in the message.  I've looked in the seller hub and don't see anything flagging specific listings.  How am I to know which listings are needing to be updated?

[dazzlecity]

I got tht message too on my other store - they were right - they'd been here long enough so I deleted them