The Sui mainnet v1.46.2 has been released – focused on improving stability, performance, and resilience. While the changes primarily affect validators and full node operators, the benefits are felt across the entire ecosystem — from developers and dApp users to everyday token holders.
In this article, we’ll break down what changed, why it matters even if you don’t run your own node, and how node providers like NOWNodes have already taken care of everything behind the scenes.
What is Sui?
Sui is a high-performance Layer 1 blockchain that Mysten Labs built from the ground up to power fast and scalable decentralized applications. It uses the Move programming language, originally created by Meta for the Diem project, and features a unique architecture that supports parallel execution of transactions.
This means faster transactions, lower fees, and a great experience for both developers and end users – even as usage scales.
What’s new in v1.46.2?
The mainnet v1.46.2 release includes targeted fixes and protocol enhancements to improve network health and validator reliability:
1. Validator crash loop fix
A critical bug has been fixed that previously caused validators to enter crash loops during epoch transitions – a vital moment when the network updates its state. With this issue resolved, the network is now more stable and less prone to disruption at these key times.
2. Improved consensus mechanics
Several protocol-level enhancements have been made:
- Sui now handles unreliable nodes more aggressively by raising the threshold for excluding them from leadership roles. This helps keep consensus efficient and secure.
- Timestamps are also more precise — the network now calculates them using a median value across multiple nodes, which improves both fairness and consistency.
- Finally, the update introduces better garbage collection for consensus data. The system actively clears outdated information, reducing memory load and boosting overall performance.
3. Move language and CLI improvements
- The Move language now supports type annotations for lambdas, making smart contract development more expressive.
- Bugs around empty package publishing and macro analysis have been fixed.
- CLI tools have been updated, and package management is more reliable.
4. Enhanced metrics and logging (JSON-RPC)
While not directly visible to users, updates to internal dependencies and logging systems allow node operators to better monitor and maintain node health — helping the network run smoother overall.
Why it matters (even if you’re not a validator)
This update may sound technical, but it impacts regular users too:
- More stable apps and transactions, especially during network transitions
- Better performance and lower latency across dApps
- Increased accuracy of blockchain data
These behind-the-scenes improvements help ensure that everything on the surface — sending tokens, minting NFTs, using DeFi apps — just works, smoothly and reliably.
NOWNodes is already up to date
If you access the Sui network through NOWNodes, you don’t need to do anything — we’ve already updated all our infrastructure to mainnet v1.46.2.
Whether you’re sending requests via RPC or building on top of Sui, you’re already working with the most stable, optimized version of the protocol. We track Sui updates in real time and apply them immediately so you can focus on building or using apps without worrying about the backend.
Final thoughts
The Sui mainnet v1.46.2 release is another important step in making the network stronger, faster, and more predictable — especially under load or during critical events like epoch changes.
And thanks to providers like NOWNodes, you don’t have to think about maintenance, patches, or node crashes. Just build, explore, and interact — we’ll handle the rest.
NOWNodes is a blockchain-as-a-service solution that lets users get access to SUI Nodes via API. The service provides a high-quality infrastructure that is quick, cost-effective, and reliable. We have Service Quality Standards available for all partners.
SUI is under 24/7 surveillance – their availability and relevance are constantly being monitored. Get access to SUI Nodes NOW:
