Network, Relay & Client Sync • Estimated 70m

AddrV2 (BIP 155)

protocol.addr-v2-bip155

Extended peer address relay format that supports newer network address types while preserving compatibility.

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Curated resources (3)

• BIP 155: addrv2 message (article) Canonical specification for addrv2 address relay serialization.
• Bitcoin P2P Networking Reference (article) Reference for address-related P2P messages and relay behavior.
• Bitcoin Core Academy: Address Relay (article) Implementation-focused overview of modern address gossip handling.

Direct prerequisites (1)

• Peer Discovery and Addrman

Direct dependents (1)

• V2 P2P Transport (BIP324)

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