Script Restoration - Making Bitcoin programmable again
- introduces the idea of script restoration and increasing bitcoin script expressivness with broad, general primitives - BIP440: The Varops Budget (a transaction-wide compute budget that bounds validation work, generalizing sigops accounting) - BIP441: Script Restoration (a soft-fork-compatible new tapleaf version that re-enables 15 opcodes, uses a bigInt number type and increases stack limitations)