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OptiFine Download

OptiFine 1.21 HD U J1 pre9

For Minecraft 1.21

AvailableShadersForge compatibleMinecraft Java Edition

The file will open on the official OptiFine site.

OptiFined

A community download hub and wiki for OptiFine — the Minecraft optimization mod with shader support. Independent fan resource, not affiliated with Mojang or sp614x.

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MC 1.21.1
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