Upgrade Proposal
The command tx upgrade-proposal
can be used to create an upgrade proposal.
It requires the tag/version name, it returns the transaction hash.
hanchond playground tx upgrade-proposal v19.0.0 --height-diff 50
{"txhash":"8F4FBF03B147607B80A778928FFBCC196CAABEA67E98DA64745280D29EE34795", "height":250}