Last month the Wikipedia article for "International recognition of Palestine" had these countries in dark green, what am I missing?

https://en.wikipedia.org/w/index.php?title=International_rec...

When you look at an old version of a wikipedia article it still displays the current version of images. That's why in your link the image legend has eg

>[light green] Countries that have announced their impending recognition of Palestine (Australia, France, Malta, and San Marino)

but Australia is dark green in the current image (France still light green and I can't be bothered zooming to see the small ones)

If you're talking about the image, I think you need to look at the image history itself:

https://commons.m.wikimedia.org/wiki/File:Palestine_recognit... (“File History”)

Just browsing history on MediaWiki will probably show the old tex with recenn image. If you want full article, you'd have to use web.archive.org, archive.is or somethinglike that.

They already announced they intended to do this a month ago