chain upgrades #45
Description
For the upcoming testnet, we don't need to have the upgrade story worked out. However, for a production deployment, we should come up with a plan for upgrades and test it out in a testnet. It could be something lightweight like:
- Validators agree (off chain) on a target upgrade block height and time
- Everyone builds and tests the new binary with whatever config changes are needed
- At the target height, everyone stops their nodes, upgrades binaries and restarts the chain
This does not reset the chain height. But we could alternatively stop the network at the target height, export all the chain data, and effectively create a new chain with a new chain ID at height 0. I think the former is probably easier but open for discussion.