Solana Activates Fix for SOL Sent to Uncreated Accounts via SIMD-0312

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A long-standing Solana issue allowed users to send SOL to an address before its on-chain account was created, which then blocked the account creation process entirely. The existing workaround required a three-step instruction sequence that most programs never implemented, leaving many users with stranded funds. Solana's SIMD-0312 proposal introduces a new system instruction, CreateAccountAllowPrefund, which creates an account even if the target address already holds a balance. The feature activated on Solana mainnet on 29 May 2026, during epoch 979. Exchanges, wallets, and dApps must adopt the new instruction in their software before stranded deposits can be recovered, but the fix makes doing so straightforward.

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