diff --git a/programs/mango-v4/src/instructions/group_close.rs b/programs/mango-v4/src/instructions/group_close.rs
index eeb3e5af3..0df176840 100644
--- a/programs/mango-v4/src/instructions/group_close.rs
+++ b/programs/mango-v4/src/instructions/group_close.rs
@@ -6,7 +6,7 @@ use anchor_spl::token::{self, CloseAccount, Token, TokenAccount};
 pub struct GroupClose<'info> {
     #[account(
         mut,
-        constraint = group.load()?.testing == 1,
+        constraint = group.load()?.is_testing(),
         has_one = admin,
         has_one = insurance_vault,
         close = sol_destination
diff --git a/programs/mango-v4/src/instructions/group_create.rs b/programs/mango-v4/src/instructions/group_create.rs
index b25544f13..bdb1a6f80 100644
--- a/programs/mango-v4/src/instructions/group_create.rs
+++ b/programs/mango-v4/src/instructions/group_create.rs
@@ -38,7 +38,12 @@ pub struct GroupCreate<'info> {
     pub rent: Sysvar<'info, Rent>,
 }
 
-pub fn group_create(ctx: Context<GroupCreate>, group_num: u32, testing: u8) -> Result<()> {
+pub fn group_create(
+    ctx: Context<GroupCreate>,
+    group_num: u32,
+    testing: u8,
+    version: u8,
+) -> Result<()> {
     let mut group = ctx.accounts.group.load_init()?;
     group.creator = ctx.accounts.creator.key();
     group.admin = ctx.accounts.creator.key();
@@ -48,5 +53,6 @@ pub fn group_create(ctx: Context<GroupCreate>, group_num: u32, testing: u8) -> R
     group.bump = *ctx.bumps.get("group").ok_or(MangoError::SomeError)?;
     group.group_num = group_num;
     group.testing = testing;
+    group.version = version;
     Ok(())
 }
diff --git a/programs/mango-v4/src/instructions/perp_close_market.rs b/programs/mango-v4/src/instructions/perp_close_market.rs
index 1bf40e29b..90c3bcdae 100644
--- a/programs/mango-v4/src/instructions/perp_close_market.rs
+++ b/programs/mango-v4/src/instructions/perp_close_market.rs
@@ -6,7 +6,7 @@ use crate::state::*;
 #[derive(Accounts)]
 pub struct PerpCloseMarket<'info> {
     #[account(
-        constraint = group.load()?.testing == 1,
+        constraint = group.load()?.is_testing(),
         has_one = admin,
     )]
     pub group: AccountLoader<'info, Group>,
diff --git a/programs/mango-v4/src/instructions/perp_create_market.rs b/programs/mango-v4/src/instructions/perp_create_market.rs
index 8abc21dd2..ea01edd4a 100644
--- a/programs/mango-v4/src/instructions/perp_create_market.rs
+++ b/programs/mango-v4/src/instructions/perp_create_market.rs
@@ -11,6 +11,7 @@ use crate::util::fill16_from_str;
 pub struct PerpCreateMarket<'info> {
     #[account(
         has_one = admin,
+        constraint = group.load()?.perps_supported()
     )]
     pub group: AccountLoader<'info, Group>,
     pub admin: Signer<'info>,
diff --git a/programs/mango-v4/src/instructions/serum3_deregister_market.rs b/programs/mango-v4/src/instructions/serum3_deregister_market.rs
index 3a4570ed1..f88baa8ee 100644
--- a/programs/mango-v4/src/instructions/serum3_deregister_market.rs
+++ b/programs/mango-v4/src/instructions/serum3_deregister_market.rs
@@ -7,7 +7,7 @@ use crate::state::*;
 pub struct Serum3DeregisterMarket<'info> {
     #[account(
         mut,
-        constraint = group.load()?.testing == 1,
+        constraint = group.load()?.is_testing(),
         has_one = admin,
     )]
     pub group: AccountLoader<'info, Group>,
diff --git a/programs/mango-v4/src/instructions/serum3_register_market.rs b/programs/mango-v4/src/instructions/serum3_register_market.rs
index 8523527f5..a8db144ee 100644
--- a/programs/mango-v4/src/instructions/serum3_register_market.rs
+++ b/programs/mango-v4/src/instructions/serum3_register_market.rs
@@ -10,6 +10,7 @@ pub struct Serum3RegisterMarket<'info> {
     #[account(
         mut,
         has_one = admin,
+        constraint = group.load()?.serum3_supported()
     )]
     pub group: AccountLoader<'info, Group>,
     pub admin: Signer<'info>,
diff --git a/programs/mango-v4/src/instructions/stub_oracle_close.rs b/programs/mango-v4/src/instructions/stub_oracle_close.rs
index 2814de1da..eb640c529 100644
--- a/programs/mango-v4/src/instructions/stub_oracle_close.rs
+++ b/programs/mango-v4/src/instructions/stub_oracle_close.rs
@@ -6,7 +6,7 @@ use crate::state::*;
 #[derive(Accounts)]
 pub struct StubOracleClose<'info> {
     #[account(
-        constraint = group.load()?.testing == 1,
+        constraint = group.load()?.is_testing(),
         has_one = admin,
     )]
     pub group: AccountLoader<'info, Group>,
diff --git a/programs/mango-v4/src/instructions/token_add_bank.rs b/programs/mango-v4/src/instructions/token_add_bank.rs
index a0e916460..a1de92419 100644
--- a/programs/mango-v4/src/instructions/token_add_bank.rs
+++ b/programs/mango-v4/src/instructions/token_add_bank.rs
@@ -11,6 +11,7 @@ use crate::state::*;
 pub struct TokenAddBank<'info> {
     #[account(
         has_one = admin,
+        constraint = group.load()?.multiple_banks_supported()
     )]
     pub group: AccountLoader<'info, Group>,
     pub admin: Signer<'info>,
diff --git a/programs/mango-v4/src/instructions/token_deregister.rs b/programs/mango-v4/src/instructions/token_deregister.rs
index 4f022a853..d5df31373 100644
--- a/programs/mango-v4/src/instructions/token_deregister.rs
+++ b/programs/mango-v4/src/instructions/token_deregister.rs
@@ -8,7 +8,7 @@ use anchor_lang::AccountsClose;
 #[instruction(token_index: TokenIndex)]
 pub struct TokenDeregister<'info> {
     #[account(
-        constraint = group.load()?.testing == 1,
+        constraint = group.load()?.is_testing(),
         has_one = admin,
     )]
     pub group: AccountLoader<'info, Group>,
diff --git a/programs/mango-v4/src/lib.rs b/programs/mango-v4/src/lib.rs
index 8b739b360..5d13821b7 100644
--- a/programs/mango-v4/src/lib.rs
+++ b/programs/mango-v4/src/lib.rs
@@ -32,8 +32,13 @@ pub mod mango_v4 {
 
     use super::*;
 
-    pub fn group_create(ctx: Context<GroupCreate>, group_num: u32, testing: u8) -> Result<()> {
-        instructions::group_create(ctx, group_num, testing)
+    pub fn group_create(
+        ctx: Context<GroupCreate>,
+        group_num: u32,
+        testing: u8,
+        version: u8,
+    ) -> Result<()> {
+        instructions::group_create(ctx, group_num, testing, version)
     }
 
     pub fn group_edit(
diff --git a/programs/mango-v4/src/state/group.rs b/programs/mango-v4/src/state/group.rs
index 971b988b1..e19d6b754 100644
--- a/programs/mango-v4/src/state/group.rs
+++ b/programs/mango-v4/src/state/group.rs
@@ -26,15 +26,35 @@ pub struct Group {
     pub insurance_mint: Pubkey,
 
     pub bump: u8,
-    // Only support closing/deregistering groups, stub oracles, tokens, and markets
-    // if testing == 1
+
     pub testing: u8,
-    pub padding2: [u8; 6],
+
+    pub version: u8,
+
+    pub padding2: [u8; 5],
     pub reserved: [u8; 8],
 }
 const_assert_eq!(size_of::<Group>(), 32 * 5 + 4 + 4 + 1 * 2 + 6 + 8);
 const_assert_eq!(size_of::<Group>() % 8, 0);
 
+impl Group {
+    pub fn is_testing(&self) -> bool {
+        self.testing == 1
+    }
+
+    pub fn multiple_banks_supported(&self) -> bool {
+        self.is_testing() || self.version > 0
+    }
+
+    pub fn serum3_supported(&self) -> bool {
+        self.is_testing() || self.version > 0
+    }
+
+    pub fn perps_supported(&self) -> bool {
+        self.is_testing() || self.version > 0
+    }
+}
+
 // note: using creator instead of admin, since admin can be changed
 #[macro_export]
 macro_rules! group_seeds {
diff --git a/programs/mango-v4/tests/program_test/mango_client.rs b/programs/mango-v4/tests/program_test/mango_client.rs
index c39a51bdc..a1d4a9d47 100644
--- a/programs/mango-v4/tests/program_test/mango_client.rs
+++ b/programs/mango-v4/tests/program_test/mango_client.rs
@@ -1230,6 +1230,7 @@ impl<'keypair> ClientInstruction for GroupCreateInstruction<'keypair> {
         let instruction = Self::Instruction {
             group_num: 0,
             testing: 1,
+            version: 0,
         };
 
         let group = Pubkey::find_program_address(
diff --git a/ts/client/src/client.ts b/ts/client/src/client.ts
index d6a24817f..c21da3f64 100644
--- a/ts/client/src/client.ts
+++ b/ts/client/src/client.ts
@@ -76,11 +76,12 @@ export class MangoClient {
   public async groupCreate(
     groupNum: number,
     testing: boolean,
+    version: number,
     insuranceMintPk: PublicKey,
   ): Promise<TransactionSignature> {
     const adminPk = (this.program.provider as AnchorProvider).wallet.publicKey;
     return await this.program.methods
-      .groupCreate(groupNum, testing ? 1 : 0)
+      .groupCreate(groupNum, testing ? 1 : 0, version)
       .accounts({
         creator: adminPk,
         payer: adminPk,
diff --git a/ts/client/src/mango_v4.ts b/ts/client/src/mango_v4.ts
index d441e2a68..0f793982f 100644
--- a/ts/client/src/mango_v4.ts
+++ b/ts/client/src/mango_v4.ts
@@ -41,7 +41,7 @@ export type MangoV4 = {
         },
         {
           "name": "insuranceVault",
-          "isMut": false,
+          "isMut": true,
           "isSigner": false,
           "pda": {
             "seeds": [
@@ -87,6 +87,10 @@ export type MangoV4 = {
         {
           "name": "testing",
           "type": "u8"
+        },
+        {
+          "name": "version",
+          "type": "u8"
         }
       ]
     },
@@ -2865,12 +2869,16 @@ export type MangoV4 = {
             "name": "testing",
             "type": "u8"
           },
+          {
+            "name": "version",
+            "type": "u8"
+          },
           {
             "name": "padding2",
             "type": {
               "array": [
                 "u8",
-                6
+                5
               ]
             }
           },
@@ -4950,7 +4958,7 @@ export const IDL: MangoV4 = {
         },
         {
           "name": "insuranceVault",
-          "isMut": false,
+          "isMut": true,
           "isSigner": false,
           "pda": {
             "seeds": [
@@ -4996,6 +5004,10 @@ export const IDL: MangoV4 = {
         {
           "name": "testing",
           "type": "u8"
+        },
+        {
+          "name": "version",
+          "type": "u8"
         }
       ]
     },
@@ -7774,12 +7786,16 @@ export const IDL: MangoV4 = {
             "name": "testing",
             "type": "u8"
           },
+          {
+            "name": "version",
+            "type": "u8"
+          },
           {
             "name": "padding2",
             "type": {
               "array": [
                 "u8",
-                6
+                5
               ]
             }
           },
diff --git a/ts/client/src/scripts/example1-admin.ts b/ts/client/src/scripts/example1-admin.ts
index 51430c687..c7cbe1e52 100644
--- a/ts/client/src/scripts/example1-admin.ts
+++ b/ts/client/src/scripts/example1-admin.ts
@@ -57,7 +57,7 @@ async function main() {
   console.log(`Creating Group...`);
   const insuranceMint = new PublicKey(DEVNET_MINTS.get('USDC')!);
   try {
-    await client.groupCreate(GROUP_NUM, true, insuranceMint);
+    await client.groupCreate(GROUP_NUM, true, insuranceMint, 0);
   } catch (error) {
     console.log(error);
   }
diff --git a/ts/client/src/scripts/mb-example1-admin.ts b/ts/client/src/scripts/mb-example1-admin.ts
index 8e7700481..74a8f681b 100644
--- a/ts/client/src/scripts/mb-example1-admin.ts
+++ b/ts/client/src/scripts/mb-example1-admin.ts
@@ -42,7 +42,7 @@ async function main() {
   console.log(`Creating Group...`);
   try {
     const insuranceMint = new PublicKey(MAINNET_MINTS.get('USDC')!);
-    await client.groupCreate(0, true, insuranceMint);
+    await client.groupCreate(0, true, insuranceMint, 0);
   } catch (error) {
     console.log(error);
   }