[Only if you have an OF Cape] If you have an Optifine Cape, and didn't know about this update. Please read. So, optifine added a new feature where you don't need to have the OF any more. You can create your own banner at http://www.needcoolshoes.com/banner Once you do that you can login to your Optifine Cape on https://optifine.net/capeChange . Once you did that select a little thing that says, Design [Standard]. Click on that, then there will be many options. If you haven't noticed there is a new option called Banner, click that. Once you created your cape, scroll down and look for Saved Banners, look a bit lower, there should be a plus sign. Click that. Then, below that there should be an URL. Copy that, go back to the optifine cape change, and paste it into the URL thingy. Once you did that it should work.