New Networking Layer for the TON Blockchain

Following the consensus and mempool upgrades, the blockchain’s networking layer has been completely redesigned.

Versions 2026.04-1 — 2026.06 introduced QUIC as a replacement for RLDP1/2 and the ADNL transport, dedicated block-sync and fast-sync overlays, as well as Plumtree broadcasts.

The new approach reduces inbound node traffic by approximately 4× and outbound traffic by 2×, while improving synchronization and node connectivity.

The 2026.06 update is already deployed on mainnet. Validators will next vote to enable Plumtree, after which the legacy broadcasts will be disabled in a separate update.