Getting started
To get started, you need to enable the stargate feature of the cosmwasm-std crate.
This will enable additional functionality that is not available on all chains, including IBC support.
cosmwasm-std = { version = "2", features = ["stargate"] }
info
The naming "stargate" is somewhat confusing. It is a reference to the Cosmos SDK 0.40 upgrade with the same name. This upgrade introduced (among other things) IBC.