Topic: Minecraft 1.8.4 released, update away!
Update by Dr. Cossack
Mojang released today a new update to Minecraft, 1.8.4. This new version is compatible with all previous 1.8 versions, so you're free to upgrade at your leisure.
On a related note, I've already patched the servers against the exploit that was disclosed yesterday, so we don't have anything to worry about on that front!