This isn’t something that I’ve ever seen before. I was just sitting on my PS4 when a System Software Update called “5.53-01” popped up in my download list. It only weighs in at 69mb and thankfully didn’t require my PlayStation 4 to restart, but it did say that some games would require the update to play online.
I’ve personally never seen a software update with a hyphen which would indicate that this is another version of the same system software update with a minor update. Usually it’d just go up .01 or jump a little bit further.
The update suggest that it does the below, but there must have been something that PlayStation wanted to patch out urgently.
“This system Software update improves system performance.”