Sui v1.81.1 Extends Protocol 138 Network Updates

Published: 2026-10-07 19:00:21 |

Sui’s v1.81.1 mainnet release advances Protocol 138, following related changes introduced in devnet v1.81.0. The updates cover validators, full nodes, transaction processing and developer tools, with no announced tokenomics changes or direct user action required for most features. Sui adds a memory-invariant check and improves handling of deferred transactions. On devnet and testnet, transaction effects no longer report dependencies; object version and previous-transaction metadata remain unchanged. Testnet also checks object funds during execution. Full nodes no longer limit simulated transactions to preferred proposers by default, while validators use a consensus-side transaction pool when proposing blocks. Operators can restore previous behavior through configuration, and can optionally enable object-utilization metrics. The Sui release also improves Rosetta checkpoint retrieval and adds GraphQL queries and fields. CLI and Move testing updates support balance withdrawals and more accurate tracking of address and object funds. These are primarily infrastructure and developer-facing changes, so their direct price impact on SUI is likely limited unless they contribute to greater network reliability or adoption.

Neutral

The releases focus on protocol infrastructure, node operations and developer tooling, with no announced changes to SUI’s tokenomics and no immediate user action required for most features. That makes a direct near-term price catalyst unlikely. Traders may view improved transaction handling and node flexibility as modest positives for network reliability, but such technical upgrades do not necessarily translate into immediate demand for SUI. Over the longer term, smoother tooling and more robust operations could support adoption if they lead to increased application activity; the summaries provide no evidence of that outcome yet. Overall, SUI’s price is more likely to respond to broader market conditions, network usage and subsequent adoption data than to this release alone.