refactor: Rename x/{mod}/legacy to x/{mod}/migrations (#9628)

<!--
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## Description

Closes: #8700 

<!-- Add a description of the changes that this PR introduces and the files that
are the most critical to review. -->

---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [x] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [x] provided a link to the relevant issue or specification
- [x] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [x] added a changelog entry to `CHANGELOG.md`
- [x] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [x] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

.golangci.yml

@@ -54,7 +54,7 @@ issues:
     - text: "ST1016:"
       linters:
         - stylecheck
-    - path: "legacy"
+    - path: "migrations"
       text: "SA1019:"
       linters:
         - staticcheck

CHANGELOG.md

@@ -44,6 +44,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### API Breaking Changes
 
+* [\#9628](https://github.com/cosmos/cosmos-sdk/pull/9628) Rename `x/{mod}/legacy` to `x/{mod}/migrations`.
 * [\#9571](https://github.com/cosmos/cosmos-sdk/pull/9571) Implemented error handling for staking hooks, which now return an error on failure.
 * [\#9427](https://github.com/cosmos/cosmos-sdk/pull/9427) Move simapp `FundAccount` and `FundModuleAccount` to `x/bank/testutil`
 * (client/tx) [\#9421](https://github.com/cosmos/cosmos-sdk/pull/9421/) `BuildUnsignedTx`, `BuildSimTx`, `PrintUnsignedStdTx` functions are moved to
@@ -59,6 +60,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * [\#9371](https://github.com/cosmos/cosmos-sdk/pull/9371) Non-zero default fees/Server will error if there's an empty value for min-gas-price in app.toml
 
 ### Improvements
+
 * (cli) [\#9593](https://github.com/cosmos/cosmos-sdk/pull/9593) Check if chain-id is blank before verifying signatures in multisign and error.
 
 ### Bug Fixes

baseapp/baseapp.go

@@ -19,7 +19,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/store/rootmulti"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 const (

baseapp/baseapp_test.go

@@ -29,7 +29,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 var (

client/tx/legacy.go

@@ -6,7 +6,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 

client/tx/legacy_test.go

@@ -14,7 +14,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	"github.com/cosmos/cosmos-sdk/types"
 	signing2 "github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 	"github.com/cosmos/cosmos-sdk/x/auth/tx"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"

codec/amino_codec_test.go

@@ -12,7 +12,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/simapp"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	"github.com/cosmos/cosmos-sdk/x/auth/client/rest"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 func createTestCodec() *codec.LegacyAmino {

crypto/keys/multisig/multisig_test.go

@@ -18,7 +18,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 func TestNewMultiSig(t *testing.T) {

proto/cosmos/bank/v1beta1/bank.proto

@@ -52,7 +52,7 @@ message Supply {
   option (gogoproto.equal)           = true;
   option (gogoproto.goproto_getters) = false;
 
-  option (cosmos_proto.implements_interface) = "*github.com/cosmos/cosmos-sdk/x/bank/legacy/v040.SupplyI";
+  option (cosmos_proto.implements_interface) = "*github.com/cosmos/cosmos-sdk/x/bank/migrations/v040.SupplyI";
 
   repeated cosmos.base.v1beta1.Coin total = 1
       [(gogoproto.nullable) = false, (gogoproto.castrepeated) = "github.com/cosmos/cosmos-sdk/types.Coins"];

simapp/params/amino.go

@@ -5,7 +5,7 @@ package params
 import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/codec/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 // MakeTestEncodingConfig creates an EncodingConfig for an amino based test configuration.

types/simulation/types.go

@@ -8,7 +8,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 type WeightedProposalContent interface {

x/auth/ante/basic.go

@@ -7,7 +7,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	authsigning "github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 

x/auth/ante/setup.go

@@ -5,7 +5,7 @@ import (
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 var (

x/auth/ante/sigverify.go

@@ -14,7 +14,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	authsigning "github.com/cosmos/cosmos-sdk/x/auth/signing"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )

x/auth/ante/sigverify_test.go

@@ -16,7 +16,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/tx/signing"
 	"github.com/cosmos/cosmos-sdk/x/auth/ante"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 

x/auth/client/rest/broadcast.go

@@ -10,7 +10,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/tx"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	"github.com/cosmos/cosmos-sdk/types/rest"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 // BroadcastReq defines a tx broadcasting request.

x/auth/client/rest/decode.go

@@ -10,7 +10,7 @@ import (
 	clienttx "github.com/cosmos/cosmos-sdk/client/tx"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/rest"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 

x/auth/client/rest/encode.go

@@ -10,7 +10,7 @@ import (
 	clientrest "github.com/cosmos/cosmos-sdk/client/rest"
 	"github.com/cosmos/cosmos-sdk/client/tx"
 	"github.com/cosmos/cosmos-sdk/types/rest"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 // EncodeResp defines a tx encoding response.

x/auth/client/rest/rest_test.go

@@ -28,7 +28,7 @@ import (
 	authcli "github.com/cosmos/cosmos-sdk/x/auth/client/cli"
 	authrest "github.com/cosmos/cosmos-sdk/x/auth/client/rest"
 	authtest "github.com/cosmos/cosmos-sdk/x/auth/client/testutil"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	bankcli "github.com/cosmos/cosmos-sdk/x/bank/client/testutil"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )

x/auth/client/tx.go

@@ -18,7 +18,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 // GasEstimateResponse defines a response definition for tx gas estimation.

x/auth/client/tx_test.go

@@ -16,7 +16,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	authclient "github.com/cosmos/cosmos-sdk/x/auth/client"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 

x/auth/keeper/migrations.go

@@ -3,7 +3,7 @@ package keeper
 import (
 	"github.com/gogo/protobuf/grpc"
 
-	v043 "github.com/cosmos/cosmos-sdk/x/auth/legacy/v043"
+	v043 "github.com/cosmos/cosmos-sdk/x/auth/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"

x/auth/migrations/legacytx/config_test.go

@@ -9,7 +9,7 @@ import (
 	cryptoAmino "github.com/cosmos/cosmos-sdk/crypto/codec"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/testutil"
 )
 

x/auth/migrations/legacytx/stdsig_test.go

@@ -8,7 +8,7 @@ import (
 	yaml "gopkg.in/yaml.v2"
 
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 func TestStdSignatureMarshalYAML(t *testing.T) {

x/auth/migrations/v038/types.go

@@ -20,7 +20,7 @@ import (
 	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/bech32/legacybech32"
-	v034auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v034"
+	v034auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v034"
 )
 
 const (

x/auth/migrations/v039/types.go

@@ -15,8 +15,8 @@ import (
 	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
 	cryptotypes "github.com/cosmos/cosmos-sdk/crypto/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v034auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v034"
-	v038auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v038"
+	v034auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v034"
+	v038auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v038"
 )
 
 const (

x/auth/migrations/v040/migrate.go

@@ -3,7 +3,7 @@ package v040
 import (
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	v039auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v039"
+	v039auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v039"
 	v040auth "github.com/cosmos/cosmos-sdk/x/auth/types"
 	v040vesting "github.com/cosmos/cosmos-sdk/x/auth/vesting/types"
 )

x/auth/migrations/v040/migrate_test.go

@@ -10,10 +10,10 @@ import (
 	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v034 "github.com/cosmos/cosmos-sdk/x/auth/legacy/v034"
-	v038auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v038"
-	v039auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v039"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v034 "github.com/cosmos/cosmos-sdk/x/auth/migrations/v034"
+	v038auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v038"
+	v039auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v039"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 func TestMigrate(t *testing.T) {

x/auth/signing/handler_map_test.go

@@ -8,7 +8,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/crypto/keys/secp256k1"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	signingtypes "github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 )

x/auth/signing/verify_test.go

@@ -14,7 +14,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth/ante"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 	"github.com/cosmos/cosmos-sdk/x/auth/types"
 	"github.com/cosmos/cosmos-sdk/x/bank/testutil"

x/auth/tx/legacy_amino_json.go

@@ -6,7 +6,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
 	signingtypes "github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 

x/auth/tx/legacy_amino_json_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	signingtypes "github.com/cosmos/cosmos-sdk/types/tx/signing"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/auth/signing"
 )
 

x/auth/types/codec.go

@@ -4,7 +4,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/codec/types"
 	cryptocodec "github.com/cosmos/cosmos-sdk/crypto/codec"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 // RegisterLegacyAminoCodec registers the account interfaces and concrete types on the

x/authz/msgs.go

@@ -9,7 +9,7 @@ import (
 	cdctypes "github.com/cosmos/cosmos-sdk/codec/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 var (

x/bank/client/rest/tx_test.go

@@ -10,7 +10,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/errors"
 	"github.com/cosmos/cosmos-sdk/types/rest"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	authtypes "github.com/cosmos/cosmos-sdk/x/auth/types"
 	bankrest "github.com/cosmos/cosmos-sdk/x/bank/client/rest"
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"

x/bank/keeper/migrations.go

@@ -2,7 +2,7 @@ package keeper
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v043 "github.com/cosmos/cosmos-sdk/x/bank/legacy/v043"
+	v043 "github.com/cosmos/cosmos-sdk/x/bank/migrations/v043"
 )
 
 // Migrator is a struct for handling in-place store migrations.

x/bank/migrations/v040/keys.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 const (

x/bank/migrations/v040/migrate.go

@@ -1,9 +1,9 @@
 package v040
 
 import (
-	v039auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v039"
-	v036supply "github.com/cosmos/cosmos-sdk/x/bank/legacy/v036"
-	v038bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v038"
+	v039auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v039"
+	v036supply "github.com/cosmos/cosmos-sdk/x/bank/migrations/v036"
+	v038bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v038"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )
 

x/bank/migrations/v040/migrate_test.go

@@ -8,11 +8,11 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v038auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v038"
-	v039auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v039"
-	v036supply "github.com/cosmos/cosmos-sdk/x/bank/legacy/v036"
-	v038bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v038"
-	v040bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v040"
+	v038auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v038"
+	v039auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v039"
+	v036supply "github.com/cosmos/cosmos-sdk/x/bank/migrations/v036"
+	v038bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v038"
+	v040bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v040"
 )
 
 func TestMigrate(t *testing.T) {

x/bank/migrations/v043/store.go

@@ -4,8 +4,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	"github.com/cosmos/cosmos-sdk/store/prefix"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
-	v040bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
+	v040bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v040"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )
 

x/bank/migrations/v043/store_test.go

@@ -10,8 +10,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v040"
-	v043bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v043"
+	v040bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v040"
+	v043bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )
 

x/bank/module.go

@@ -22,7 +22,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/bank/client/cli"
 	"github.com/cosmos/cosmos-sdk/x/bank/client/rest"
 	"github.com/cosmos/cosmos-sdk/x/bank/keeper"
-	v040 "github.com/cosmos/cosmos-sdk/x/bank/legacy/v040"
+	v040 "github.com/cosmos/cosmos-sdk/x/bank/migrations/v040"
 	"github.com/cosmos/cosmos-sdk/x/bank/simulation"
 	"github.com/cosmos/cosmos-sdk/x/bank/types"
 )

x/bank/types/bank.pb.go

@@ -445,48 +445,48 @@ func init() {
 func init() { proto.RegisterFile("cosmos/bank/v1beta1/bank.proto", fileDescriptor_dd052eee12edf988) }
 
 var fileDescriptor_dd052eee12edf988 = []byte{
-	// 642 bytes of a gzipped FileDescriptorProto
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-	0x00, 0x00,
+	// 644 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x54, 0xc1, 0x6b, 0x13, 0x4f,
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+	0x35, 0x05, 0x00, 0x00,
 }
 
 func (this *SendEnabled) Equal(that interface{}) bool {

x/crisis/migrations/v040/migrate.go

@@ -1,7 +1,7 @@
 package v040
 
 import (
-	v039crisis "github.com/cosmos/cosmos-sdk/x/crisis/legacy/v039"
+	v039crisis "github.com/cosmos/cosmos-sdk/x/crisis/migrations/v039"
 	v040crisis "github.com/cosmos/cosmos-sdk/x/crisis/types"
 )
 

x/distribution/keeper/migrations.go

@@ -2,7 +2,7 @@ package keeper
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v043 "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v043"
+	v043 "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v043"
 )
 
 // Migrator is a struct for handling in-place store migrations.

x/distribution/migrations/v036/types.go

@@ -10,9 +10,9 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v034distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v034"
+	v034distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v034"
 	"github.com/cosmos/cosmos-sdk/x/distribution/types"
-	v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
+	v036gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v036"
 )
 
 // ----------------------------------------------------------------------------

x/distribution/migrations/v038/types.go

@@ -5,8 +5,8 @@ package v038
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v034distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v034"
-	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v036"
+	v034distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v034"
+	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v036"
 )
 
 // DONTCOVER

x/distribution/migrations/v040/keys.go

@@ -6,7 +6,7 @@ import (
 	"encoding/binary"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 const (

x/distribution/migrations/v040/migrate.go

@@ -1,7 +1,7 @@
 package v040
 
 import (
-	v038distribution "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v038"
+	v038distribution "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v038"
 	v040distribution "github.com/cosmos/cosmos-sdk/x/distribution/types"
 )
 

x/distribution/migrations/v043/helpers.go

@@ -4,7 +4,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/store/prefix"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/address"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 // MigratePrefixAddress is a helper function that migrates all keys of format:

x/distribution/migrations/v043/store.go

@@ -2,7 +2,7 @@ package v043
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040distribution "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v040"
+	v040distribution "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v040"
 )
 
 // MigrateStore performs in-place store migrations from v0.40 to v0.43. The

x/distribution/migrations/v043/store_test.go

@@ -9,8 +9,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040distribution "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v040"
-	v043distribution "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v043"
+	v040distribution "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v040"
+	v043distribution "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/distribution/types"
 )
 

x/evidence/migrations/v040/migrate.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
-	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/legacy/v038"
+	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/migrations/v038"
 	v040evidence "github.com/cosmos/cosmos-sdk/x/evidence/types"
 )
 

x/evidence/migrations/v040/migrate_test.go

@@ -8,8 +8,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/legacy/v038"
-	v040evidence "github.com/cosmos/cosmos-sdk/x/evidence/legacy/v040"
+	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/migrations/v038"
+	v040evidence "github.com/cosmos/cosmos-sdk/x/evidence/migrations/v040"
 )
 
 func TestMigrate(t *testing.T) {

x/feegrant/msgs.go

@@ -7,7 +7,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 )
 
 var (

x/genutil/client/cli/migrate.go

@@ -14,8 +14,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/client/flags"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/version"
-	v040 "github.com/cosmos/cosmos-sdk/x/genutil/legacy/v040"
-	v043 "github.com/cosmos/cosmos-sdk/x/genutil/legacy/v043"
+	v040 "github.com/cosmos/cosmos-sdk/x/genutil/migrations/v040"
+	v043 "github.com/cosmos/cosmos-sdk/x/genutil/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/genutil/types"
 )
 

x/genutil/migrations/v040/migrate.go

@@ -3,30 +3,30 @@ package v040
 import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/codec"
-	v039auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v039"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
-	v036supply "github.com/cosmos/cosmos-sdk/x/bank/legacy/v036"
-	v038bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v038"
-	v040bank "github.com/cosmos/cosmos-sdk/x/bank/legacy/v040"
-	v039crisis "github.com/cosmos/cosmos-sdk/x/crisis/legacy/v039"
-	v040crisis "github.com/cosmos/cosmos-sdk/x/crisis/legacy/v040"
-	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v036"
-	v038distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v038"
-	v040distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v040"
-	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/legacy/v038"
-	v040evidence "github.com/cosmos/cosmos-sdk/x/evidence/legacy/v040"
-	v039genutil "github.com/cosmos/cosmos-sdk/x/genutil/legacy/v039"
+	v039auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v039"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
+	v036supply "github.com/cosmos/cosmos-sdk/x/bank/migrations/v036"
+	v038bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v038"
+	v040bank "github.com/cosmos/cosmos-sdk/x/bank/migrations/v040"
+	v039crisis "github.com/cosmos/cosmos-sdk/x/crisis/migrations/v039"
+	v040crisis "github.com/cosmos/cosmos-sdk/x/crisis/migrations/v040"
+	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v036"
+	v038distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v038"
+	v040distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v040"
+	v038evidence "github.com/cosmos/cosmos-sdk/x/evidence/migrations/v038"
+	v040evidence "github.com/cosmos/cosmos-sdk/x/evidence/migrations/v040"
+	v039genutil "github.com/cosmos/cosmos-sdk/x/genutil/migrations/v039"
 	"github.com/cosmos/cosmos-sdk/x/genutil/types"
-	v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
-	v040gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v040"
-	v039mint "github.com/cosmos/cosmos-sdk/x/mint/legacy/v039"
-	v040mint "github.com/cosmos/cosmos-sdk/x/mint/legacy/v040"
-	v036params "github.com/cosmos/cosmos-sdk/x/params/legacy/v036"
-	v039slashing "github.com/cosmos/cosmos-sdk/x/slashing/legacy/v039"
-	v040slashing "github.com/cosmos/cosmos-sdk/x/slashing/legacy/v040"
-	v038staking "github.com/cosmos/cosmos-sdk/x/staking/legacy/v038"
-	v040staking "github.com/cosmos/cosmos-sdk/x/staking/legacy/v040"
-	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/legacy/v038"
+	v036gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v036"
+	v040gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v040"
+	v039mint "github.com/cosmos/cosmos-sdk/x/mint/migrations/v039"
+	v040mint "github.com/cosmos/cosmos-sdk/x/mint/migrations/v040"
+	v036params "github.com/cosmos/cosmos-sdk/x/params/migrations/v036"
+	v039slashing "github.com/cosmos/cosmos-sdk/x/slashing/migrations/v039"
+	v040slashing "github.com/cosmos/cosmos-sdk/x/slashing/migrations/v040"
+	v038staking "github.com/cosmos/cosmos-sdk/x/staking/migrations/v038"
+	v040staking "github.com/cosmos/cosmos-sdk/x/staking/migrations/v040"
+	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/migrations/v038"
 )
 
 func migrateGenutil(oldGenState v039genutil.GenesisState) *types.GenesisState {

x/genutil/migrations/v043/migrate.go

@@ -3,8 +3,8 @@ package v043
 import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/x/genutil/types"
-	v040gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v040"
-	v043gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v043"
+	v040gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v040"
+	v043gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v043"
 	gov "github.com/cosmos/cosmos-sdk/x/gov/types"
 )
 

x/gov/client/utils/query_test.go

@@ -13,7 +13,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/auth/legacy/legacytx"
+	"github.com/cosmos/cosmos-sdk/x/auth/migrations/legacytx"
 	"github.com/cosmos/cosmos-sdk/x/gov/client/utils"
 	"github.com/cosmos/cosmos-sdk/x/gov/types"
 )

x/gov/keeper/migrations.go

@@ -2,7 +2,7 @@ package keeper
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v043 "github.com/cosmos/cosmos-sdk/x/gov/legacy/v043"
+	v043 "github.com/cosmos/cosmos-sdk/x/gov/migrations/v043"
 )
 
 // Migrator is a struct for handling in-place store migrations.

x/gov/migrations/v036/types.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v034gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v034"
+	v034gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v034"
 )
 
 const (

x/gov/migrations/v040/keys.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 const (

x/gov/migrations/v040/migrate.go

@@ -6,14 +6,14 @@ import (
 	proto "github.com/gogo/protobuf/proto"
 
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
-	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v036"
+	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v036"
 	v040distr "github.com/cosmos/cosmos-sdk/x/distribution/types"
-	v034gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v034"
-	v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
+	v034gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v034"
+	v036gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v036"
 	v040gov "github.com/cosmos/cosmos-sdk/x/gov/types"
-	v036params "github.com/cosmos/cosmos-sdk/x/params/legacy/v036"
+	v036params "github.com/cosmos/cosmos-sdk/x/params/migrations/v036"
 	v040params "github.com/cosmos/cosmos-sdk/x/params/types/proposal"
-	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/legacy/v038"
+	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/migrations/v038"
 	v040upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/types"
 )
 

x/gov/migrations/v040/migrate_test.go

@@ -9,11 +9,11 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/legacy/v036"
-	v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
-	v040gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v040"
-	v036params "github.com/cosmos/cosmos-sdk/x/params/legacy/v036"
-	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/legacy/v038"
+	v036distr "github.com/cosmos/cosmos-sdk/x/distribution/migrations/v036"
+	v036gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v036"
+	v040gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v040"
+	v036params "github.com/cosmos/cosmos-sdk/x/params/migrations/v036"
+	v038upgrade "github.com/cosmos/cosmos-sdk/x/upgrade/migrations/v038"
 )
 
 func TestMigrate(t *testing.T) {

x/gov/migrations/v043/json_test.go

@@ -10,7 +10,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/simapp"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v043gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v043"
+	v043gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/gov/types"
 )
 

x/gov/migrations/v043/store_test.go

@@ -11,8 +11,8 @@ import (
 	"github.com/cosmos/cosmos-sdk/testutil"
 	"github.com/cosmos/cosmos-sdk/testutil/testdata"
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v040"
-	v043gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v043"
+	v040gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v040"
+	v043gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v043"
 	"github.com/cosmos/cosmos-sdk/x/gov/types"
 )
 

x/mint/migrations/v040/migrate.go

@@ -1,7 +1,7 @@
 package v040
 
 import (
-	v039mint "github.com/cosmos/cosmos-sdk/x/mint/legacy/v039"
+	v039mint "github.com/cosmos/cosmos-sdk/x/mint/migrations/v039"
 	v040mint "github.com/cosmos/cosmos-sdk/x/mint/types"
 )
 

x/params/migrations/v036/types.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 
 	"github.com/cosmos/cosmos-sdk/codec"
-	v036gov "github.com/cosmos/cosmos-sdk/x/gov/legacy/v036"
+	v036gov "github.com/cosmos/cosmos-sdk/x/gov/migrations/v036"
 )
 
 const (

x/slashing/keeper/migrations.go

@@ -2,7 +2,7 @@ package keeper
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v043 "github.com/cosmos/cosmos-sdk/x/slashing/legacy/v043"
+	v043 "github.com/cosmos/cosmos-sdk/x/slashing/migrations/v043"
 )
 
 // Migrator is a struct for handling in-place store migrations.

x/slashing/migrations/v040/keys.go

@@ -6,7 +6,7 @@ import (
 	"encoding/binary"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	v040auth "github.com/cosmos/cosmos-sdk/x/auth/legacy/v040"
+	v040auth "github.com/cosmos/cosmos-sdk/x/auth/migrations/v040"
 )
 
 const (