How to manually update Minecraft?

Being the lazy guy I am, I got a minecraft client... version 1.1 or whatever.... how do I update this?

Buy the game, run client, it'll update itself.No other way, unless you want to download another version.

Replying to #2

There's the rub, I want 1.6.6 not 1.7 because the mods I want work on 1.6.6

Can't you just wait for the modders to update their mods to work on 1.7?

Replying to #4

Yeah, that's what I do. I mean, Herobrine was removed in 1.7. Why would anyone want any version before the version that removes Herobrine?