For anyone who doesn't read news, a new feature has been enabled called "spoiler tags," which are like the ordinary cuts but don't reload the page, and let you have multiple cuts on a single page without seeing all of them at once - the procedure is the same as the lj-cut thing, but with lj-spoiler instead.
so here is [a spoiler]a spoiler - Rosebud is the sleigh
and here is [another]another - Luke is Vader's son
There's some other useful stuff including the ability to set up posts to appear at a particular time if you can't be at a computer to post - must be good for e.g. games, contests, announcements, etc.