First time I've heard about this. Good Lord (I have >25,000 attachments). Did find that report, but still haven't figured out how to get TB9 to recognize me as a PRO user, which is required. Will get that tracked down ASAP.
So I take it that since every attachment is preceded by this path:
C:\MCT\Brains\Climate Risk Brain_brain\Files\423D6A09-C73F-B346-B209-A315F865FD9F I have 70 characters left for the file name itself. At least in my case that's probably sufficient, although I may have many files that currently exceed it.
Since I'm assuming this is a significant change from V8, any idea of why it was done?