OptiFine have released a stand alone .jar file that lets you play Minecraft with all the benefits of OptiFine. It is still in test stages so some features are missing but they are being added and worked on.
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Step 1: Download Optifine
Start by downloading the appropriate version of OptiFine for your version of Minecraft from this link. Step 2: Activate the Installer
Click on the installer you just downloaded, which will automatically install OptiFine for Minecraft. It will also create a profile in your Minecraft launcher called "Optifine."... more