Add CreateAccountAllowPrefund instruction (SIMD-0312)#81
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Adds the new System Program instruction CreateAccountAllowPrefund (discriminator 13) per [SIMD-0312](https://github.com/solana-foundation/solana-improvement-documents/blob/main/proposals/0312-create-account-allow-prefund.md), which allows account creation when the new account already holds lamports. The payer account is optional and only required when lamports > 0.
febo
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May 29, 2026
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Adds the new System Program instruction CreateAccountAllowPrefund (discriminator 13) per SIMD-0312, which allows account creation when the new account already holds lamports. The payer account is optional and only required when lamports > 0.