The SELFDESTRUCT opcode is a powerful tool that lets smart contracts delete themselves, sending remaining funds to a designated address. It’s akin to streamlining Ethereum’s internal housekeeping practices for a smoother-running network.
However, this has potential security issues and can bloat the Ethereum state. EIP-6780 puts restrictions in place, making it more difficult and potentially more expensive to use SELFDESTRUCT. This ensures a cleaner, more manageable state, enhancing long-term stability and security while still allowing for legitimate uses of the function. .
EIP-1153 introduces a new "transient storage" option within the Ethereum blockchain. This storage is temporary, meaning data within it is automatically deleted after a transaction finishes. It's much cheaper to use than regular storage and is ideal for passing information between different parts of a smart contract within a single transaction.
EIP-4788 proposal integrates "Beacon Block Roots" into each Ethereum Virtual Machine (EVM) block. Beacon Block Roots are unique identifiers of blocks on the Ethereum Beacon Chain, summarizing the chain's state for security and verification purposes.