We can say it's for both Christmas and Ruby relesae. :)
The fact that Christmas is almost over where I am - and I saw the normal banner all day - might explain it :)
Re:Ruby 2.3.0 Released
by steveklabnik on Friday December 25, 2015 @09:56AM
(#10791356)
This will always work, since Ruby always releases on Christmas. :)
The banner is ruby red, so why not.
doh! till I read this I thought hn had simply rolled out a new stylesheet.
facepalm