feat: Add MsgSoftwareUpgrade and MsgCancelUpgrade (for new msgs-b…

…ased gov proposals) (#11116)

CHANGELOG.md

@@ -39,6 +39,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Features
 
+* (x/upgrade) [\#11116](https://github.com/cosmos/cosmos-sdk/pull/11116) `MsgSoftwareUpgrade` and  has been added to support v1beta2 msgs-based gov proposals.
 * [\#11308](https://github.com/cosmos/cosmos-sdk/pull/11308) Added a mandatory metadata field to Vote in x/gov v1beta2.
 * [\#10977](https://github.com/cosmos/cosmos-sdk/pull/10977) Now every cosmos message protobuf definition must be extended with a ``cosmos.msg.v1.signer`` option to signal the signer fields in a language agnostic way.
 * [\#10710](https://github.com/cosmos/cosmos-sdk/pull/10710) Chain-id shouldn't be required for creating a transaction with both --generate-only and --offline flags.
@@ -151,6 +152,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * [\#9780](https://github.com/cosmos/cosmos-sdk/pull/9780) Use sigs.k8s.io for yaml, which might lead to minor YAML output changes
 * [\#10625](https://github.com/cosmos/cosmos-sdk/pull/10625) Rename `--fee-account` CLI flag to `--fee-granter`
 * [\#10684](https://github.com/cosmos/cosmos-sdk/pull/10684) Rename `edit-validator` command's `--moniker` flag to `--new-moniker`
+* [\#11116](https://github.com/cosmos/cosmos-sdk/pull/11116) `software-upgrade` and `cancel-software-upgrade` gov proposal commands have changed to `legacy-software-upgrade` and `legacy-cancel-software-upgrade`.
 
 ### Improvements