There is something we can take inspiration from called ECMA Script compatibility table:
Yes, the ECMA Script/Javascript folks are quite thorough.
Yes, I love that site and use it all the time. I love the clear layout and I love how fast it is.
I made a list of some "metadata" I would like to use attached to this email.
It looks good to me. In addition to year of first commit, I would add year of most recent commit.
PS: I made progress with Chibi Scheme in the browser, I hope to have
something more interesting to show tomorrow.
That's cool. I'm really curious to see how quick you can make it load.