[chessx-developer] CR#s?

[Aaron L. <dar...@gm...>]

In the changelog (https://github.com/madnight/chessx/blob/master/ChangeLog),
I see a bunch of "CR#2984375", etc. What are they? I'm guessing CR means
change request, and they look like ticket numbers from a ticket system. But
that's a REALLY high number of tickets!

Specifically, I'm looking at CR#3580030 (mentioned in 7e4997a440f5 (
https://github.com/Isarhamster/chessx/commit/7e4997a440f5) which implements
"human readable" FEN. What is "human readable" FEN? I was hoping CR#3580030
would shed some light on the matter.