Bitcoin Optech #306: Disclosure of Vulnerabilities Affecting Older Versions of Bitcoin Core

This issue announces an upcoming disclosure of Bitcoin Core vulnerabilities, and describes: a draft BIP for testnet4, functional encryption covenants, proposed updates to 64-bit arithmetic in Bitcoin Script, looks at OP_CAT script to validate proof of work, as well as proposed update to BIP21.

https://www.nobsbitcoin.com/bitcoin-optech-306/