[U-Boot-Users] How to find out u-boot version

[Pharaoh .]

Hi
I have old u-boot sources and I am comparing them against the latest
u-boot sources.
How can I find out the version of the old u-boot sources when I dont
know how long and from where they have been downloaded? I have checked
the README file but the version is never mentioned there. I know it
sounds like a dumb question, please enlighten.

-pharaoh.