Summary This on-chain upgrade governance proposal is to adopt the Nolus v0.6.3 update for the Nolus Pirin mainnet which is currently running on v0.6.2-patch. This upgrade introduces the following changes:
* CometBFT Update: CometBFT - the consensus engine of the Nolus blockchain - gets updated to the latest version.
* Lower Block Time: Due to the significant disk optimizations after the Nolus v0.6.2 Eden upgrade, default node config values have been implemented. Specifically, timeouts for proposing and committing a block would get reduced.
## Changes A complete changelog can be seen in the v0.6.3 release on github.
## On-Chain Upgrade Process
When the network reaches the halt height, the state machine program of Nolus 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. Validators can coordinate with each other on Discord in advance of the release. Please use the "chat" channel under the "Validators" section. The target block for the scheduled update is 7006500 which should be reached on the 4th of September, 2024 (Wednesday) at around 13:30 UTC. As a disclaimer, this is a rough estimate assuming an average block time of 6.00 seconds.
Validators can also make use of Cosmovisor to schedule the upgrade of the nolusd binary to the latest version. A sample guide to do so can be found here. Make sure to use the latest version - v0.6.3.
