From c1f190126a30626d53936f90de88843ac26efe6c Mon Sep 17 00:00:00 2001
From: Bryan Chen <xlchen1291@gmail.com>
Date: Sat, 23 Oct 2021 19:04:17 +1300
Subject: [PATCH] set xcm version to 2 upon upgrade

---
 runtime/karura/src/lib.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/runtime/karura/src/lib.rs b/runtime/karura/src/lib.rs
index cd5c5dead9..4a1e53c571 100644
--- a/runtime/karura/src/lib.rs
+++ b/runtime/karura/src/lib.rs
@@ -1879,9 +1879,18 @@ pub type Executive = frame_executive::Executive<
 		TechnicalCommitteeStoragePrefixMigration,
 		MigrateTipsPalletPrefix,
 		BountiesPrefixMigration,
+		SetXcmVersion,
 	),
 >;
 
+pub struct SetXcmVersion;
+impl OnRuntimeUpgrade for SetXcmVersion {
+	fn on_runtime_upgrade() -> u64 {
+		let _ = PolkadotXcm::force_default_xcm_version(Origin::root(), Some(2));
+		RocksDbWeight::get().writes(1)
+	}
+}
+
 const GENERAL_COUNCIL_MEMBERSHIP_OLD_PREFIX: &str = "Instance1Membership";
 /// Migrate from `Instance1Membership` to the new pallet prefix `GeneralCouncilMembership`
 pub struct GeneralCouncilMembershipStoragePrefixMigration;