We’re pleased to announce that COTI Mainnet will undergo the next step in its Helium network upgrade, estimated to occur on January 11, 2026 at 12:00 PM UTC. The Helium upgrade will further strengthen COTI’s infrastructure and performance for real-world privacy use cases. Including, improving the network’s ability to run confidential logic while keeping sensitive data protected. With Helium, COTI furthers itself as the fastest, lightest weight and highest-performing privacy chain in the world.
The upgrade will include a hardfork, and automatically take place at the protocol level at block 5,098,638, No action is required from end users, wallets, balances, and normal network usage are expected to continue seamlessly. To learn more visit: docs.coti.io and GitHub.
What’s included in the upgrade?
v1.2.0 introduces the Helium protocol fork and major enhancements across COTI’s high-performance private computation stack, focused on three priorities: more expressive confidential logic, improved arithmetic correctness, and better developer visibility.
Improved performance of arithmetic circuits
Helium delivers updated multiplication and division circuit implementations, with refinements designed to improve both correctness and increase performance. Pricing parameters for MPC computation are also adjusted to reflect updated computation cost.
Expanded application support
To enable more advanced applications to be built on COTI, Helium adds native support for 128-bit and 256-bit arithmetic, aligned across execution and private computation layers. This unlocks a broader range of confidential use cases, that depend on larger or more precise values, for example DeFi, to take advantage of COTI’s scalable infrastructure.
New trace/debug tooling for private computation
Helium introduces optional trace/debug capabilities for MPC operations. This feature is disabled by default and intended for development and testing, helping builders better understand and troubleshoot confidential execution flows.
Compatibility fix for Proxy Contract patterns
The release includes a fix to validateCipherText to avoid checking the caller’s nesting level, enabling use with Proxy Contracts.
No action required (for users)
As with prior upgrades, end users and token holders don’t need to take any action. The network upgrade is designed to be seamless and non-disruptive for everyday activity.
Why Helium matters
Privacy enables real applications to scalably process sensitive data that can remain confidential, while ensuring support for advanced logic and functionality.
COTI’s Helium upgrade moves our mission forward of being the fastest and most cost-effective chain for builders, enterprises and institutions:
Builders can run more complex private logic reliably, without workarounds or limitations.
Confidential DeFi, RWAs, and enterprise apps can handle large values and real financial primitives safely at scale.
Teams spend less time debugging private execution and more time shipping production-ready applications.
In other words: more functionality, better reliability, and a smoother path for builders.
Looking forward
Helium is another deliberate step toward COTI’s long-term vision: a network where confidential computation is practical, scalable, and ready for mainstream use cases.
We’ll continue to ship upgrades that strengthen the core infrastructure, to ensure COTI remains the fastest and most cost-effective chain to meet the needs of developers, enterprise partners, and users building the next generation of privacy-preserving applications.
Stay tuned for further updates, and as always, Stay COTI.
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