1.4.4 seems like a really worthless update that just added a bunch of misc stuff like mobs and and bug fixes
am i wrong?
It fixed a really bad exploit, made it possible to use a minecart without mysteriously dying a few minutes later (now you just die instantly if you fall anywhere), and you can now actually kill slimes. There are also another 80 or so pretty major bugfixes, like this one "* [MC-1102] - Minecraft crashes in creative inventory"
It's a 3-digit update anyway, which should never really be expected as anything other than bugfixes for the main version (1.4).