What is KIP-2 and what would it change for Kaspa?

KIP-2 is a proposed upgrade to Kaspa's consensus layer that would transition the network to follow the DAGKNIGHT protocol. A Kaspa Improvement Proposal (KIP) is a formal document submitted by developers to propose a network change; KIP-2 targets the consensus layer — the core rules all nodes use to agree on the state of the network — and is classified as a hard fork and an API/RPC change. A hard fork means every participant on the network must upgrade at the same time; nodes that do not upgrade would fall out of sync with the rest of the network. KIP-2 was authored by Yonatan Sompolinsky and Michael Sutton, and its current status is Proposed, meaning it has not yet been activated on the live network. For beginners, this signals that the DAGKNIGHT upgrade is a formally documented proposal under consideration, not a change that has already happened.