[Stable Mainnet] Update gas token #678
Description
Stable v1.2.0 introduces several protocol-level improvements aimed at simplifying token usage, improving developer ergonomics, and enhancing chain observability and stability.
From v1.2.0, Stable adopts USDT0 as the native gas token. As part of this change, gUSDT, the unwrapped representation of USDT0, is deprecated. All existing gUSDT balances on-chain will be automatically converted to USDT0.
USDT0 has a dual nature. It functions simultaneously as the native gas token used to pay transaction fees and as a standard ERC20 token supporting approve, transfer, and transferFrom. The same balance is accessible both through native balance semantics and ERC20 operations. This unification removes the need for wrapping and unwrapping between tokens, significantly simplifying the experience for users and developers. Additional technical details will be available in the developer guide.
-> Please update the gas token of Stable Mainnet from gUSDT to USDT0
More information about Stable's runtime upgrade can be found here: https://docs.google.com/document/d/17qO2J6qt_uFFkb6n2GbXpHv6WUvxo1g135aHKsNGfdk/edit?tab=t.0#heading=h.t2qjh784anlu