LNHANCE: This upgrade involves 4 significant technological changes or concepts to improve bitcoin’s scalability, privacy, and flexibility.

Proposing a P2QRH BIP towards a quantum resistant soft fork: BIP is to provide a concrete proposal for adding quantum resistance to Bitcoin.

BIP-94: A new testnet was merged into Bitcoin, the Testnet4

BIP-353: DNS Payments

BIP-347: OP_CAT

BIP-352: Silent Payments

BIP 388: Wallet Policies for Descriptor Wallets

BIP 331: Ancestor Package Relay

BIP-46: Address Scheme for Timelocked Fidelity Bonds

BIP Proposal: Redefinition of the Bitcoin Unit to the Base Denomination

BIP Proposal: OP_PAIRCOMMIT

BIP proposal: DLEQ