Cosmos SDK (Deprecated)

Action required: IBC assets on Sei will become inaccessible If you hold USDC.n (USDC via Noble), USDT.kava (Kava USDT), Wormhole-bridged tokens, or any other IBC asset on Sei, you must swap, migrate, or bridge out before the governance proposal to disable inbound/outbound IBC transfers passes and is activated to avoid permanent loss of access. After this, Sei will no longer support IBC bridging of assets from Cosmos-based chains to and from Sei Network. Consult the SIP-03 Migration Guide for the full list of affected assets, required actions, and supported routes. For USDC.n specifically, see: Holders of USDC.n Need to Swap or Migrate.

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EVM

Cosmos-SDK

Nodes

Deprecation NoticeCosmos SDK and CosmWasm functionality is being deprecated in favor of EVM-only. For more details, see SIP-3 and Proposal 99.In addition, Proposal 115 disables CosmWasm code uploads (MsgStoreCode) and contract instantiations (MsgInstantiateContract) chain-wide. No new CosmWasm contracts can be deployed; only execute and query against pre-existing contracts remain available via the CosmWasm precompile.Proposal 116 additionally disables inbound IBC transfers. After this passes and is activated, IBC assets bridged from Cosmos chains can no longer arrive on Sei. See the SIP-03 Migration Guide for affected assets and migration routes.

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