mainnet-v1.81.1 testnet-v1.82.1
MystenLabs/suiOct 7, 2026 → Oct 13, 20266 days between releases
What's New
Protocol updated to v139 with JSON-RPC removal and ML-DSA-65 support
Breaking Changes
- JSON-RPC service removed from full nodes
- Old database deleted on startup
New Features
- ML-DSA-65 signature support in Rust SDK, gRPC, and GraphQL
- Support for `enable_forwarding_addresses` flag
- New `ledger-grpc-num-connections` configuration
- New `x-sui-consistent-read-checkpoint` header
Improvements
- Storage fees reduced from 1% to 0.01%
- Full nodes automatically prune old `executed_transaction_digests` entries
- Updated `sui client faucet` for Testnet and proof-of-work
Upgrade Notes
Full nodes no longer support the legacy JSON-RPC service, and the old database is deleted on startup. Ensure clients are updated to use alternative interfaces like gRPC. The protocol now supports the `enable_forwarding_addresses` flag and ML-DSA-65 signatures.
The Two Releases
mainnet-v1.81.1
Oct 7, 2026· 15 days ago
This release updates the Sui Protocol to version 138, introducing gas model changes, new memory invariant checks for PTBs, and modifications to transaction dependency reporting. It also adds new observability metrics for node operators and enhances the GraphQL API and CLI tools.
Full release notestestnet-v1.82.1
Oct 13, 2026· 9 days ago
This release updates the protocol to version 139 with storage fee reductions and introduces ML-DSA-65 signature support across the Rust SDK, gRPC, and GraphQL. It also deprecates the legacy JSON-RPC service from full nodes and adds new configuration options for ledger connections.
Full release notes