I got the impression from the email thread that it was a fairly recent
(e.g. this May) change, but that might just be when people started noticing.
It looks like the last time I updated my simulators from github was around
April 2021, so hopefully I'm OK. I also see that all my disk images are an
exact multiple of 512 bytes, which is also a good sign (unless of course the
metadata is 512 bytes too!).
It's a bit of a concern because from time to time I copy simh simulated
disk image files to a real, physical, disk (RL02, RA7x, RA8x, etc) and I
also do the reverse (make simh disk images by copying physical disks).
That's always worked flawlessly in the past.
I also had no idea that Bob Supnik was independently working on a simh
update, nor that Mark's github repository was his own personal project. I
guess I always assumed that it was "sanctioned" in some way. Silly me...
Bob