Sei v6.4 upgrade includes a protocol-level switch to disable IBC asset transfers, which will be enabled through a governance proposal in the future. If you hold some IBC assets on Sei, you need to bridge them out to the original chain as soon as possible before the proposal passes; otherwise, native Cosmos assets will not be able to transfer into Sei, and assets may not be recoverable. Assets that need to be processed promptly include: USDCet, USDCop, USDTbs, ATOM, WBTC. This move is a transitional step to promote SIP-3 and upgrade the network to an EVM-only chain.

MeNews

2026-05-26 06:13:03

Abstract generation in progress

ME News message: On April 18 (UTC+8), Sei officially stated that the Sei v6.4 upgrade has added a protocol-level switch for “closing IBC asset transfers.” Going forward, it will be officially enabled via governance proposals. Sei also reminded users that if they hold some IBC assets on Sei, they should bridge them out to the original chain as soon as possible before the proposal passes; otherwise, the related Cosmos native assets will no longer be able to be transferred to Sei, and users may face the risk of being unable to retrieve their assets. The assets currently needing to be handled as quickly as possible include: USDCet (Wormhole Ethereum USDC), USDCop (Wormhole Optimism USDC), USDTbs, ATOM, and WBTC. Sei said this adjustment is part of the transition to upgrade the network to “only EVM chain” as part of SIP-3. (Source: MLion)

SEI3.97%

ATOM4.96%

W0.31%

USDC0.01%

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QuantsAndCats

· 2h ago

ATOM can no longer be used. In the future, what kind of integration will Sei and Cosmos Hub have?

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GateUser-88d5d071

· 3h ago

The term "protocol-level switch" is very Cosmos; governance makes the decision.

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TokenomicsTailor

· 4h ago

What is USDTbs, the BSC version? I need to check if I have a position.

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ForkInTheRoadmap

· 4h ago

SIP-3’s propulsion speed is seriously impressive—pure EVM chain is basically Sei’s endgame form.

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BluePeonyInTheDark

· 4h ago

If it's only EVM chains, does Tendermint consensus still remain? Curious about the technical details.

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GateUser-ecded933

· 4h ago

Sei—Is this a complete cut from the Cosmos ecosystem? A bit heartbreaking.

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GateUser-6857a9c9

· 4h ago

If large assets like WBTC get stuck, it would be troublesome. I'll show respect first.

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LittleBitcoinInTheReflection

· 4h ago

The governance proposal hasn't passed yet, there should still be a window period, but don't wait until the last minute.

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NonceCollector

· 4h ago

USDCet and USDCop both need to be handled—these two codes are a total headache to look at.

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ColdWalletUnderTheNeonLights

· 4h ago

IBC closed? Then what should I do with my ATOM—I need to bridge it out quickly.

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Sei v6.4 upgrade adds a new switch to disable IBC asset transfers in and out

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