Where do you download optifine 1.4.6?

You can download OptiFine 1.4.6 from the official OptiFine website at optifine.net. Navigate to the "Downloads" section and look for the version you need. Keep in mind that OptiFine 1.4.6 is an older version, so you may need to check the "Older Versions" section if it’s not prominently listed. Always ensure you download from the official site to avoid any security risks.