Release Notes

The Release Procedure is defined in the CONTRIBUTING document.

v6.4.0

Highlights:

• Cosmos SDK v0.47.10 patch update.
• IBC Hooks: we integrated ICS20 Memo handling.
• Integrated Packet Forwarding Middleware.
• Update uibc/MsgGovUpdateQuota Msg type to handle the new inflow parameters.
• Update uibc/QueryAllOutflowsResponse to include denom symbol (token name) in every outflow.

CHANGELOG

IBC Hooks

This release brings the first part of the seamless cross-chain money market transactions. At UX, we want to provide the best User Experience for handling lending and leverage. In this release, we support the following x/leverage messages:

• MsgSupply
• MsgSupplyCollateral
• MsgLiquidate

The operation can only use tokens that are part of the IBC transfer (after any intermediate deductions) and the supplier / liquidator must be the IBC recipient (acting on someone else's behalf is not allowed). Authz is not supported. The remaining tokens will be credited to the recipient.

Documentation: x/uibc/README.md

Validators

Upgrade Title (for Cosmovisor): v6.4.

Update Price Feeder to umee/2.4.1+.

NOTE: after the upgrade, you should restart your Price Feeder. We observed that Price Feeder doesn't correctly re-established a connection after the chain upgrade.

libwasmvm update

Our dependencies have been updated. The binary requires libwasmvm v1.5.2. When you build the binary from source on the server machine you probably don't need any change. However, when you download a binary from GitHub, or from another source, make sure you update the /usr/lib/libwasmvm.<cpu_arch>.so. For example:

• copy from $GOPATH/pkg/mod/github.com/!cosm!wasm/wasmvm@v1.5.2/internal/api/libwasmvm.$(uname -m).so
• or download from github wget https://raw.githubusercontent.com/CosmWasm/wasmvm/v1.5.2/internal/api/libwasmvm.$(uname -m).so -O /lib/libwasmvm.$(uname -m).so

You don't need to do anything if you are using our Docker image.

Upgrade instructions

• Download latest binary or build from source.
• Make sure libwasmvm.$(uname -m).so is properly linked
  • Run the binary to make sure it works for you: umeed version
• Wait for software upgrade proposal to pass and trigger the chain upgrade.
• Swap binaries.
• Ensure latest Price Feeder (see compatibility matrix) is running and ensure your price feeder configuration is up-to-date.
• Restart the chain.
• Restart Price Feeder.

You can use Cosmovisor → see instructions.

Docker

Docker images are available in ghcr.io umee-network repository.