Injective passes USDC upgrade

Injective just pushed a blockchain plumbing change that is less about trading memes and more about moving digital dollars like cash over a payment rail. Its community approved proposal IIP-628, a mainnet upgrade tied to native USD Coin and real-time settlement on the network. (polkachu.com) (circle.com) USD Coin is a stablecoin, which means one token is designed to track one US dollar instead of swinging like Bitcoin. Traders use it the way a stock exchange uses cash: as collateral, as the unit prices are quoted in, and as the thing that actually settles a trade. (circle.com) (theblock.co) The catch is that not every USD Coin on every chain is the same kind of dollar token. Some versions are native, meaning Circle issues them directly on that chain, and some are wrapped, meaning they arrive through a bridge that creates an extra layer of risk. (theblock.co) (circle.com) Circle said on March 17, 2026 that native USD Coin and its Cross-Chain Transfer Protocol were coming to Injective. That transfer system moves coins by burning them on one blockchain and minting the same amount on another, instead of parking assets in a bridge and handing users an imitation receipt. (circle.com) (theblock.co) That matters on Injective because Injective is built around financial markets, not general-purpose apps. Circle describes the chain as a Layer 1 network with an onchain central limit order book, tokenized real-world assets, derivatives, and sub-second finality with fees often under one cent. (circle.com) IIP-628 is the software upgrade meant to harden that dollar rail before more money uses it. The proposal says new token pairs will face strict metadata validation so assets created or moved onto Injective meet the same interoperability standard from the start. (polkachu.com) The upgrade also changes how the chain handles stress in derivatives markets. Polkachu’s copy of the proposal says Injective refined liquidation logic to stop execution blocks above open notional thresholds and tightened margin controls with send restrictions so collateral accounting stays precise during volatility. (polkachu.com) The governance vote was not close. Injective said more than 33 million staked Injective tokens backed the proposal, and outside trackers showed more than 32 million tokens had already participated while voting was still underway. (x.com) (tradingview.com) The chain scheduled the upgrade around block height 161,472,000, which Polkachu estimated at 14:00 Coordinated Universal Time on April 7, 2026, with validators moving to Injective Chain version 1.18.3. In plain English, that is the point where the network paused, swapped in new software, and resumed with the new rules. (polkachu.com) This lands as USD Coin is getting bigger in the broader stablecoin market. The Block reported its supply was nearing $80 billion in March 2026, up more than 42% from roughly $55 billion a year earlier, even while Tether remained the larger stablecoin by total market value. (theblock.co) So the story here is not that Injective “added a token.” It upgraded the ledger underneath a trading-focused blockchain so native USD Coin can be used as settlement cash, cross-chain collateral, and programmable payment infrastructure without leaning on wrapped stand-ins. (circle.com) (polkachu.com)