SIMD-0553 proposed changing what Solana’s base transaction charge measures.

Instead of relying mainly on a per-signature base fee, the design would have introduced:

• a flat 2,500-lamport inclusion fee paid to the leader

• a fully burned resource fee based on requested scheduler cost

• the existing optional priority fee

The proposal was technically accepted into the SIMD process in July, but acceptance did not activate it on mainnet. The binding SGP-0003 governance vote closed rejected on August 28, 2026.

Solana’s active fee model therefore remains the 5,000-lamport base charge per applicable signature, with half burned and half paid to the block-producing validator, plus any optional priority fee.

This is a useful reminder for protocol research: specification, governance approval, feature activation, and live network behavior are separate states. Current transaction analysis must follow the rules active in the bank processing the transaction, not an older proposal headline.

Read the complete comparison:

https://tokentoolhub.com/solana-resource-inclusion-fees-simd-0553/

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