THORChain is turning the lights back on.

The network's v3.21 upgrade — cut October 19, activating at block 28,366,100 around October 23 — patches the FIN contract exploit that froze Rujira's app layer since September 26. Only one position was hit, a team-owned one; Rujira says no user funds were lost.

But this is bigger than one fix: the same release restores Solana trading (halted by a new Solana transaction type), Zcash swaps (an outbound matching bug caused a vault slash, no funds lost), limit swaps, and SwapKit affiliate payouts — plus a new Streaming Yield feature for bond providers. Rujira also proposes a 24-hour grace window for underwater borrowers before liquidations restart.

The honest caveats: the binary ships with undisclosed private security patches, and XMR still isn't coming — Monero fixes land in 3.21.1.

A network that pauses trading is fine; a network that stays paused isn't. If October 23 goes smoothly, does this upgrade become the template for how DeFi networks ship their way out of exploit freezes? NFA. DYOR.

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