diff --git a/e2e/tests/wasm/feature_releases.go b/e2e/tests/wasm/feature_releases.go
deleted file mode 100644
index 3972369999a..00000000000
--- a/e2e/tests/wasm/feature_releases.go
+++ /dev/null
@@ -1,7 +0,0 @@
-package wasm
-
-import "github.com/cosmos/ibc-go/e2e/semverutil"
-
-var govV1FailedReasonFeatureReleases = semverutil.FeatureReleases{
-	MajorVersion: "v8",
-}
diff --git a/simapp/upgrades.go b/simapp/upgrades.go
deleted file mode 100644
index 723aa8d13d9..00000000000
--- a/simapp/upgrades.go
+++ /dev/null
@@ -1,88 +0,0 @@
-package simapp
-
-import (
-	corestore "cosmossdk.io/core/store"
-	"cosmossdk.io/x/accounts"
-	consensusparamtypes "cosmossdk.io/x/consensus/types"
-	pooltypes "cosmossdk.io/x/protocolpool/types"
-	upgradetypes "cosmossdk.io/x/upgrade/types"
-
-	"github.com/cosmos/ibc-go/simapp/upgrades"
-)
-
-// registerUpgradeHandlers registers all supported upgrade handlers
-func (app *SimApp) registerUpgradeHandlers() {
-	app.UpgradeKeeper.SetUpgradeHandler(
-		upgrades.V7,
-		upgrades.CreateV7UpgradeHandler(
-			app.ModuleManager,
-			app.configurator,
-			app.appCodec,
-			*app.IBCKeeper.ClientKeeper,
-			app.ConsensusParamsKeeper,
-			app.ParamsKeeper,
-		),
-	)
-
-	app.UpgradeKeeper.SetUpgradeHandler(
-		upgrades.V7_1,
-		upgrades.CreateV7LocalhostUpgradeHandler(app.ModuleManager, app.configurator, *app.IBCKeeper.ClientKeeper),
-	)
-
-	app.UpgradeKeeper.SetUpgradeHandler(
-		upgrades.V8,
-		upgrades.CreateDefaultUpgradeHandler(
-			app.ModuleManager,
-			app.configurator,
-		),
-	)
-
-	app.UpgradeKeeper.SetUpgradeHandler(
-		upgrades.V8_1,
-		upgrades.CreateDefaultUpgradeHandler(
-			app.ModuleManager,
-			app.configurator,
-		),
-	)
-
-	app.UpgradeKeeper.SetUpgradeHandler(
-		upgrades.V9,
-		upgrades.CreateDefaultUpgradeHandler(
-			app.ModuleManager,
-			app.configurator,
-		),
-	)
-
-	upgradeInfo, err := app.UpgradeKeeper.ReadUpgradeInfoFromDisk()
-	if err != nil {
-		panic(err)
-	}
-
-	if upgradeInfo.Name == upgrades.V7 && !app.UpgradeKeeper.IsSkipHeight(upgradeInfo.Height) {
-		storeUpgrades := corestore.StoreUpgrades{
-			Added: []string{
-				consensusparamtypes.StoreKey,
-			},
-		}
-
-		// configure store loader that checks if version == upgradeHeight and applies store upgrades
-		app.SetStoreLoader(upgradetypes.UpgradeStoreLoader(upgradeInfo.Height, &storeUpgrades))
-	}
-
-	if upgradeInfo.Name == upgrades.V8 && !app.UpgradeKeeper.IsSkipHeight(upgradeInfo.Height) {
-		storeUpgrades := corestore.StoreUpgrades{}
-		// configure store loader that checks if version == upgradeHeight and applies store upgrades
-		app.SetStoreLoader(upgradetypes.UpgradeStoreLoader(upgradeInfo.Height, &storeUpgrades))
-	}
-
-	if upgradeInfo.Name == upgrades.V10 && !app.UpgradeKeeper.IsSkipHeight(upgradeInfo.Height) {
-		storeUpgrades := corestore.StoreUpgrades{
-			Added: []string{
-				pooltypes.StoreKey,
-				accounts.StoreKey,
-			},
-		}
-		// configure store loader that checks if version == upgradeHeight and applies store upgrades
-		app.SetStoreLoader(upgradetypes.UpgradeStoreLoader(upgradeInfo.Height, &storeUpgrades))
-	}
-}