docs: cleanup changelog for v2.0.0 on main (#988)

cleans

CHANGELOG.md

@@ -6,9 +6,13 @@ Add an entry to the unreleased section whenever merging a PR to main that is not
 
 ## v.2.0.0
 
-Date: May 12th, 2023
+Date: June 1st, 2023
 
-Unlike prior releases, the ICS v2.0.0 release will be based on the main branch. v2.0.0 will contain all the accumulated PRs from the various releases below, along with other PRs that were merged, but not released to production. After v2.0.0, we plan to revamp release practices, and how we modularize the repo for consumer/provider.
+Unlike prior releases, the ICS `v2.0.0` release will be based on the main branch. `v2.0.0` will contain all the accumulated PRs from the various releases below, along with other PRs that were merged, but not released to production. After `v2.0.0`, we plan to revamp release practices, and how we modularize the repo for consumer/provider.
+
+Upgrading a provider from `v1.1.0-multiden` to `v2.0.0` will require state migrations. See [migration.go](./x/ccv/provider/keeper/migration.go). See the provider module's `ConsensusVersion` in [module](./x/ccv/provider/module.go)
+
+Upgrading a consumer from `v1.2.0-multiden` to `v2.0.0` will NOT require state migrations. See the consumer module's `ConsensusVersion` in [module](./x/ccv/consumer/module.go)
 
 Some PRs from v2.0.0 may reappear from other releases below. This is due to the fact that ICS v1.1.0 deviates from the commit ordering of the main branch, and other releases thereafter are based on v1.1.0.
 
@@ -19,7 +23,7 @@ Some PRs from v2.0.0 may reappear from other releases below. This is due to the
 * Various fixes, critical and non-critical
 * Docs updates which should not affect production code
 
-## PRs included in v2.0.0
+## Notable PRs included in v2.0.0
 
 * (feat) v1->v2 migrations to accommodate a bugfix having to do with store keys, introduce new params, and deal with consumer genesis state schema changes [#975](https://github.com/cosmos/interchain-security/pull/975)
 * (deps) Bump github.com/cosmos/ibc-go/v4 from 4.4.0 to 4.4.2 [#982](https://github.com/cosmos/interchain-security/pull/982)

x/ccv/provider/keeper/migration.go

@@ -22,7 +22,7 @@ func NewMigrator(ccvProviderKeeper Keeper, ccvProviderParamSpace paramtypes.Subs
 	return Migrator{ccvProviderKeeper: ccvProviderKeeper, ccvProviderParamSpace: ccvProviderParamSpace}
 }
 
-// Migratev1Tov2 migrates a provider from v1.0.0 to v2.0.0.
+// Migratev1Tov2 migrates a provider from v1.0.0 to v2.0.0, and/or consensus version 1 -> 2.
 func (m Migrator) Migratev1Tov2(ctx sdk.Context) error {
 	// Migrate params
 	MigrateParamsv1Tov2(ctx,