BlockBeats News, May 18th, Solana development company Anza announced that it has officially recommended mainnet validators to upgrade to Agave 4.0. This upgrade introduces XDP for Turbine, QUIC-only TPU data access, a faster replay stage, and several SIMD features that will be activated in this cycle.

Anza stated that production environment testing on large mainnet validators has shown that XDP has reduced Turbine retransmit latency from about 600ms to around 0.8ms, providing critical performance headroom for Solana to scale to 1 billion CUs per block.

Furthermore, Agave 4.0 has completely removed UDP transaction access, making QUIC the sole transaction submission method; PoH entry validation and Ed25519 signature verification have also been taken off the critical path and processed asynchronously to enhance replay stage performance.

This upgrade will also progressively enable several SIMD features, including p-token (an SPL Token alternative that can release about 13% block capacity), Stake Program v5, SBPFv3 support, prefunded account creation, and BLS12-381 syscall.