Minecraft 1.7.6 will be officially published tomorrow, 10:00 CET. It contains the new skin and name systems (required for name-changing).— Jens Bergensten (@jeb_) April 8, 2014
Mojang just announced that Minecraft 1.7.6 will be coming out today ^ (well, depends what time zone you are in). Can't wait for the update! It will include the new skin format, which means you can have an extra layer OVER your normal skin. You can also enable or disable outer skin layers, which is AWESOME. This means I can have my squid skin on, and a normal one on top. I just disable the top layer so that the lower squid layer shows!