Gaia v8.0.0 Release Notes

This is the final release for the Rho upgrade which is proposed to take place at height 14,099,412 which should occur approximately at February 16th 2023 at approximately 13:00 UTC. The chain id will remain cosmoshub-4.

For full upgrade instructions please see https://hub.cosmos.network/main/hub-tutorials/upgrade-node.html.

Rho Changelog :

• (gaia) Bump ibc-go to v3.4.0 to fix a vulnerability in ICA. See v3.4.0 CHANGELOG.md and v3.2.1 Release Notes for details.
• (gaia) Bump cosmos-sdk to v0.45.12. See CHANGELOG.md for details.
• (gaia) Bump tendermint to 0.34.24. See CHANGELOG.md for details.
• (gaia) Bump liquidity to v1.5.3.
• (gaia) Bump packet-forwarding-middleware to v3.1.1.
• (feat) Add globalfee module. See globalfee docs for more details.
• (feat) #1845 Add bech32-convert command to gaiad.
• (fix) Add new fee decorator to change MaxBypassMinFeeMsgGasUsage so importers of x/globalfee can change MaxGas.
• (fix) #1870 Fix bank denom metadata in migration. See #1892 for more details.
• (fix) #1976 Fix Quicksilver ICA exploit in migration. See the bug fix forum post for more details.
• (tests) Add E2E tests. The tests cover transactions/queries tests of different modules, including Bank, Distribution, Encode, Evidence, FeeGrant, Global Fee, Gov, IBC, packet forwarding middleware, Slashing, Staking, and Vesting module.
• (tests) #1941 Fix packet forward configuration for e2e tests.
• (tests) Use gaiad to swap out Ignite in liveness tests.

Summary

This on-chain upgrade governance proposal is to adopt Gaia v8.0.0. By voting YES to this proposal, you approve of adding these updates to the Cosmos Hub.

This upgrade does not include the Replicated Security feature; that will be part of the v9-Lambda upgrade.

The forum post discussing this upgrade can be found here.

Background

Since the last v7-Theta upgrade at height 9283650 there have been a number of updates, fixes and new modules added to Gaia.

Updates

• Bump IBC to v3.4.0 from v3.0.0 which includes a fix for the interchain accounts vulnerability. See the full Changelog for more information.
• Bump Cosmos SDK to v0.45.12 from v0.45.9. See the full Release Notes and Commit History for details and updates between the last version of the SDK used in Theta.
• Bump Tendermint to v0.34.24 and replace with the Informal Systems fork to ensure software continuity.
• Bump Liquidity to v1.5.3 which notably includes updating Go to 1.18 and the Cosmos-SDK to v45.11 to ensure compatiblity with the Cosmos Hub.
• Bump Packet Forward Middleware to v3.1.1 from v2.1.1. Users should note that PFM was not configure properly in the previous version of Gaia. This module update includes necessary bug fixes to make it functional on the Cosmos Hub in v8.

Features

• Add the Global Fee module to the Cosmos Hub, which enables setting transaction fees at the network level via param-change governance proposal. For more information, see the module documentation.
• Add the debug bech32-convert command, enabling users to convert any bech32 string to the cosmos prefix.

Fixes

• Fix Bank Denom Metadata issue. In a previous upgrade, the x/bank metadata was incorrectly migrated, resulting in an incorrect bank metadata. See the fix in the upgrade handler for more information.
• Fix Quicksilver ICA exploit detailed in the forum post on the incident. See the fix in the upgrade handler for more information.

Tests

• Add a suite of E2E tests to ensure core features of the Cosmos Hub work as expected.

Testnet

V8 Rho went live on the persistent testnet after the successful simulated upgrade. For more information, see the testnet upgrade proposal or block explorer, and visit the persistent testnet documentation.

On-Chain Upgrade Process

This upgrade can be performed in multiple ways. When the network reaches the halt height, the state machine program of the Cosmos Hub will be halted. The classic method for upgrading requires all validators and node operators to manually substitute the existing state machine binary with the new binary. Alternatively node operators can use the Cosmovisor utility to swap the binaries automatically. Cosmovisor also includes the ability to download the binaries automatically before swapping them. Documentation on Cosmovisor can be found here and instructions specific to the upgrade can be found here. If you are interested in trying Cosmosvisor with a simulated local upgrade please see the local testnet documentation. Because it is an onchain upgrade process, the blockchain will be continued with all the accumulated history with continuous block height.

Potential Risk Factors

Although very extensive testing and simulation has taken place there always still exists a risk that the Cosmos Hub might experience problems due to potential bugs or errors from the new features. In the case of serious problems, validators should stop operating the network immediately. Cosmos Core Contributors will coordinate with validators in the #validators-verified channel of the Cosmos Developer Discord to create and execute a contingency plan. Likely this will be an emergency release with fixes or the recommendation to consider the upgrade aborted and revert back to the previous release of gaia (v7.1.0).

App: gaiad
Version: v8.0.0
Commit: f9507c7e79f258aaa9a2265ca7d94e53988ffe16
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