At Stable, we are on a mission to design a seamless infrastructure for the real economy. StableChain provides a fast, predictable, compliant, and low-cost settlement platform that enables scalable stablecoin payments for institutions while remaining straightforward for users.
Since Stable Mainnet launched on December 8, 2025, the network has established a foundation for stablecoin-native settlement. Today, we are excited to announce Stable v1.2.0, a significant upgrade that improves the overall experience for both retail users and developers in the Stable ecosystem.
This upgrade introduces several key protocol-level enhancements designed to simplify token usage, improve developer ergonomics, and enhance chain observability and stability.
With v1.2.0, USDT0 is now the native gas token on Stable, replacing gUSDT.
As part of this transition, gUSDT will sunset, and all existing gUSDT balances will be automatically converted to USDT0.
This update simplifies how users and applications interact with the network by removing the need for wrapping and unwrapping. Now, USDT0 serves as both the native gas token and an ERC-20 token. It can now be used both for:
Network fees (gas)
Standard token actions
including approve, permit, transfer, and transferFrom
In practice, this means users can pay fees and move value using the same stablecoin representation, without having to wrap or unwrap tokens, thereby simplifying the experience for users and developers alike.
For technical details and implementation notes, please refer to the documentation.
v1.2.0 improves visibility into staking lifecycle events.
Previously, completion of the STABLE token unstaking did not emit any on-chain events, and smart contracts had to actively monitor blockchain events through RPC calls until the end of the 7-day unbonding process.
With this upgrade, Stable will include system-generated transactions (sent by 0x1) when an UnbondingComplete event occurs. Applications and indexers can now reliably track completed undelegations through on-chain events by listening to events and querying finalized balances.
v1.2.0 resolves a compatibility issue affecting older Solidity versions.
Stable v1.2.0 introduces support for gas-waived transactions, enabling selected flows to execute without requiring users to hold gas upfront.
The gas waiver system is API-managed and includes safeguards designed to prevent abuse, including:
per-transaction usage limits
block-level caps
API rate limiting
Gas waivers are executed through a set of approved waiver accounts, which can be updated through governance. Waived transactions are wrapped and signed by a waiver account to ensure consistent enforcement and accountability.
For integrators and developers, this unlocks new onboarding and payment UX patterns while maintaining protocol-level controls.
Stable v1.2.0 strengthens the foundation for stablecoin settlement at scale by:
reducing token friction for users and applications
improving event-driven visibility for staking workflows
expanding compatibility across Solidity tooling
enabling new gas abstraction patterns for smoother UX
reinforcing reliability for production workloads
Stable v1.2.0 is part of an ongoing roadmap to make StableChain easier to integrate, easier to operate, and more resilient at scale.
Over the coming releases, Stable will continue to improve:
settlement reliability under sustained load
developer tooling and ecosystem infrastructure
payment-oriented UX for real-world stablecoin flows
More updates will be shared through official Stable channels.
Documentation: https://docs.stable.xyz
Mainnet Hub: https://hub.stable.xyz
Blog: https://blog.stable.xyz
Community: https://discord.gg/stablexyz