## Software Upgrade Being Scheduled With This Proposal
If successful, this proposal will schedule an Evmos Mainnet software upgrade at block height 22,763,500 (estimated to be around 4PM UTC on Mon., August 12., 2024 based on the last 50,000 blocks) from its current version v18.1.0 to v19.1.0. This proposal has a voting time of 120 hours.
## Motivation
By proposing a scheduled upgrade, we want to implement a smooth and transparent upgrade process, that is first proposed on Testnet and then on Mainnet. Software upgrades generally aim to improve current performance and add new features to the Evmos chain. For more information on the types of upgrades, please visit our Software Upgrade Guide.
## Impact
Evmos v19.1.0 contains the following enhancements over v18.1.0:
- Enable STR v2 to unify ERC-20 tokens and IBC coins - Implement customizability of opcodes - Add logic to customize EVM permissioning - Introduces IBC rate-limit middleware. - Updates Cosmos SDK to v0.47.8-evmos, ibc-go to v7.5.2 and CometBFT to v0.37.9 - Remove the revenue module
The Evmos core team created an End-to-End testing suite that performs the software upgrade locally. These tests have been completed successfully for this upgrade. The instructions on how to run the End-to-End testing suite can be found here. Additionally, the upgrade has been manually performed locally with a multi-node setup. On top of the upgrade tests, the Evmos team runs performance tests to monitor the impact of new versions.
---- ## Discussion Please follow and discuss this proposal using the official discussion on Commonwealth.
