Deep Dive
1. Testnet v1.80.1 for Protocol 137 (24 September 2026)
Overview: This testnet release allows developers and node operators to test upcoming features in a safe environment before they are considered for the mainnet. It focuses on backend improvements rather than direct user-facing changes.
The build includes enhancements to the Move execution engine, GraphQL, and JSON-RPC services. A key technical improvement is cheaper, large-batch verification for a specific type of cryptographic proof (Ristretto255 range-proof), which could reduce costs for privacy-focused applications. It also expands package visibility and query support, improving how developers build and interact with smart contracts.
What this means: This is neutral for SUI as it's a standard development step. It shows the team is actively working on making the network more efficient and capable for future complex applications, which could attract more builders in the long run.
(TradingView News)
2. Legacy JSON-RPC Interface Retirement (13 September 2026)
Overview: Sui is officially deprecating its older JSON-RPC interface, pushing all developers to use the newer gRPC and GraphQL APIs. This is a mandatory infrastructure change with a firm deadline.
This migration is part of the broader "RPC 2.0" initiative to modernize how applications communicate with the Sui blockchain. The newer APIs offer better performance, more flexible data querying, and are designed for the long-term growth of the ecosystem.
What this means: This is bullish for SUI because it forces the entire developer ecosystem onto more robust and scalable infrastructure. While it requires short-term effort from builders, it leads to a more reliable and performant network for end-users, supporting higher-quality dApps.
(Akshay on X)
3. Major Upgrade Fixing Outage Bugs (1 June 2026)
Overview: This was a critical network upgrade deployed to fix severe "crash bugs" introduced in a prior software release (v1.72). These bugs caused three separate outages, halting the mainnet for over 15 hours across two days.
The specific issues were a gas-charging bug that could create negative balances and a randomness-state bug that occurred during validator restarts. The Sui Foundation emphasized that no user funds were at risk during these incidents. The upgrade directly patched these vulnerabilities and improved the network's resilience.
What this means: This is bullish for SUI because it directly addresses a major weakness—network stability. Fixing these bugs restores confidence among users and developers, which is essential for a blockchain handling financial transactions and DeFi protocols.
(TradingView News)
Conclusion
Sui's recent codebase trajectory prioritizes hardening network reliability, modernizing core infrastructure, and iterating on advanced features in test environments. These updates collectively aim to build a more robust foundation for developer innovation and user adoption. Will the full rollout of Protocol 137 features further differentiate Sui's technical capabilities in the competitive L1 landscape?