What do Kaspa node operators need to do before the Toccata Hardfork?

Kaspa node operators must upgrade to v2.0.0 before the Toccata Hardfork activates — failing to do so will disconnect their node from the network. Starting 24 hours before the hardfork activation, nodes will only connect to peers using the new P2P protocol version 10. A node is software that participates in the Kaspa network by validating and relaying transactions; if yours is still running an older protocol version at that point, it will be unable to communicate with upgraded peers and will effectively fall off the network. Upgrading before the 24-hour window is the only way to ensure your node stays connected and continues seeing live data.