The relays.dat Last Modified Date has not changed since 2011. Should it change? I am finding some old relays in it that are causing automatic relay affiliation to fail. Using Bigfix 9.5.8.
The date on my copy of relays.dat is old too.
During that time I’ve moved my workstation between a number of servers, upgraded the client (and the servers) and added & removed relays.
My current relays.dat looks correct - it certainly reflects the recent additions and removals.