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Stablecoins, to put it simply, are constantly evolving. The iteration process of USDD clearly demonstrates this — the early version used an algorithmic stability mechanism, which sounded impressive, but during sharp market fluctuations, it required continuous injections of subsidies, and the effect was just so-so. By 2025, they completely changed their approach.
The new version directly adopts a decentralized, over-collateralized, fully on-chain model. All collateral assets, transaction data, and treasury status are fully transparent for you to review. If you want to audit it yourself, the transparency is indeed solid. For stability, they use the PSM module to enable 1:1 no-slippage exchanges, with an accompanying arbitrage mechanism designed to prevent price swings. Even in turbulent markets, it can firmly anchor to the US dollar.
What's more interesting is that the newly introduced sUSDD and Smart Allocator directly link protocol revenue to users. In plain language: your funds in this system are not idle but are continuously generating on-chain income. This approach not only maintains stability but also provides holders with real returns.
From the evolution of 'barely holding together without collapsing' to 'self-consistent and self-operating mechanism,' this upgrade has transformed a once experimental product into a fundamental financial asset within the DeFi ecosystem. A qualitative leap.