ViaBackwards

• Fixed issues with creaking entities, some new blocks and particles in 1.21.2->1.21
• Fixed writing of new player info list order in 1.21.2->1.21 (by EnZaXD)
• Fixed painting entity data in 1.21.2->1.21
• Fixed disconnect on join for older 1.20 clients on 1.21.2 servers because of unknown registry
• Fixed empty custom data tags sometimes being removed with creative clients on 1.20.5/1.21 (by EnZaXD)

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