diff --git a/StardewArchipelago/Archipelago/ArchipelagoClient.cs b/StardewArchipelago/Archipelago/ArchipelagoClient.cs
index 727c05a9f..bd50f8e5c 100644
--- a/StardewArchipelago/Archipelago/ArchipelagoClient.cs
+++ b/StardewArchipelago/Archipelago/ArchipelagoClient.cs
@@ -26,6 +26,7 @@ public class ArchipelagoClient
         private ChatForwarder _chatForwarder;
         private GiftHandler _giftHandler;
         private ArchipelagoConnectionInfo _connectionInfo;
+        private IManifest _modManifest;
 
         private Action _itemReceivedFunction;
 
@@ -34,13 +35,14 @@ public class ArchipelagoClient
         public Dictionary<string, ScoutedLocation> ScoutedLocations { get; set; }
         // public Random MultiRandom { get; set; }
 
-        public ArchipelagoClient(IMonitor console, IModHelper modHelper, Harmony harmony, Action itemReceivedFunction)
+        public ArchipelagoClient(IMonitor console, IModHelper modHelper, Harmony harmony, Action itemReceivedFunction, IManifest manifest)
         {
             _console = console;
             _modHelper = modHelper;
             _harmony = harmony;
             _itemReceivedFunction = itemReceivedFunction;
             IsConnected = false;
+            _modManifest = manifest;
             ScoutedLocations = new Dictionary<string, ScoutedLocation>();
         }
 
@@ -52,6 +54,15 @@ public void Connect(ArchipelagoConnectionInfo connectionInfo, GiftHandler giftHa
             if (!success)
             {
                 DisconnectPermanently();
+                return;
+            }
+
+            var majorVersion = _modManifest.Version.MajorVersion.ToString();
+            if (!SlotData.MultiworldVersion.StartsWith(majorVersion))
+            {
+                errorMessage = $"This Multiworld has been created for StardewArchipelago version {SlotData.MultiworldVersion},\nbut this is StardewArchipelago version {_modManifest.Version}.\nPlease update to a compatible mod version.";
+                DisconnectPermanently();
+                return;
             }
         }
 
@@ -62,7 +73,7 @@ private bool TryConnect(ArchipelagoConnectionInfo connectionInfo, out string err
             {
                 InitSession(connectionInfo);
                 var itemsHandling = ItemsHandlingFlags.AllItems;
-                var minimumVersion = new Version(0, 3, 7);
+                var minimumVersion = new Version(0, 3, 9);
                 var tags = connectionInfo.DeathLink ? new[] { "AP", "DeathLink" } : new[] { "AP" };
                 result = _session.TryConnectAndLogin(GAME_NAME, _connectionInfo.SlotName, itemsHandling, minimumVersion, tags, null, _connectionInfo.Password);
             }
@@ -99,14 +110,14 @@ private bool TryConnect(ArchipelagoConnectionInfo connectionInfo, out string err
             _console.Log(loginMessage, LogLevel.Info);
 
             // Must go AFTER a successful connection attempt
-            InitializeAfterConnection(loginSuccess, connectionInfo.SlotName);
+            InitializeSlotData(connectionInfo.SlotName, loginSuccess.SlotData);
+            InitializeAfterConnection();
             connectionInfo.DeathLink = SlotData.DeathLink;
             return true;
         }
 
-        private void InitializeAfterConnection(LoginSuccessful loginSuccess, string slotName)
+        private void InitializeAfterConnection()
         {
-            InitializeSlotData(slotName, loginSuccess.SlotData);
             _session.Items.ItemReceived += OnItemReceived;
             _session.MessageLog.OnMessageReceived += OnMessageReceived;
             _session.Socket.ErrorReceived += SessionErrorReceived;
diff --git a/StardewArchipelago/Archipelago/SlotData.cs b/StardewArchipelago/Archipelago/SlotData.cs
index 3c1fdabb3..879c19270 100644
--- a/StardewArchipelago/Archipelago/SlotData.cs
+++ b/StardewArchipelago/Archipelago/SlotData.cs
@@ -33,6 +33,7 @@ public class SlotData
         private const string SEED_KEY = "seed";
         private const string MODIFIED_BUNDLES_KEY = "modified_bundles";
         private const string MODIFIED_ENTRANCES_KEY = "randomized_entrances";
+        private const string MULTIWORLD_VERSION_KEY = "client_version";
 
         private Dictionary<string, object> _slotDataFields;
         private IMonitor _console;
@@ -58,6 +59,7 @@ public class SlotData
         public double GiftTax { get; private set; }
         public bool DeathLink { get; private set; }
         public string Seed { get; private set; }
+        public string MultiworldVersion { get; private set; }
         private Dictionary<string, string> ModifiedBundles { get; set; }
         public Dictionary<string, string> ModifiedEntrances { get; set; }
 
@@ -87,6 +89,7 @@ public SlotData(string slotName, Dictionary<string, object> slotDataFields, IMon
             GiftTax = GetSlotSetting(GIFT_TAX_KEY, 30) / 100.0;
             DeathLink = GetSlotSetting(DEATH_LINK_KEY, false);
             Seed = GetSlotSetting(SEED_KEY, "");
+            MultiworldVersion = GetSlotSetting(MULTIWORLD_VERSION_KEY, "");
             var newBundleStringData = GetSlotSetting(MODIFIED_BUNDLES_KEY, "");
             ModifiedBundles = JsonConvert.DeserializeObject<Dictionary<string, string>>(newBundleStringData);
             var newEntrancesStringData = GetSlotSetting(MODIFIED_ENTRANCES_KEY, "");
diff --git a/StardewArchipelago/ModEntry.cs b/StardewArchipelago/ModEntry.cs
index 984e428c6..4835103f9 100644
--- a/StardewArchipelago/ModEntry.cs
+++ b/StardewArchipelago/ModEntry.cs
@@ -65,7 +65,7 @@ public override void Entry(IModHelper helper)
             _helper = helper;
             _harmony = new Harmony(this.ModManifest.UniqueID);
 
-            _archipelago = new ArchipelagoClient(Monitor, _helper, _harmony, OnItemReceived);
+            _archipelago = new ArchipelagoClient(Monitor, _helper, _harmony, OnItemReceived, ModManifest);
 
             _helper.Events.GameLoop.GameLaunched += this.OnGameLaunched;
             _helper.Events.GameLoop.SaveCreating += this.OnSaveCreating;
diff --git a/StardewArchipelago/manifest.json b/StardewArchipelago/manifest.json
index 5429dbebf..bcc0a5321 100644
--- a/StardewArchipelago/manifest.json
+++ b/StardewArchipelago/manifest.json
@@ -1,7 +1,7 @@
 {
   "Name": "StardewArchipelago",
   "Author": "Kaito Kid",
-  "Version": "2.2.1",
+  "Version": "2.2.2",
   "Description": "Stardew Valley Randomizer for Archipelago",
   "UniqueID": "KaitoKid.StardewArchipelago",
   "EntryDll": "StardewArchipelago.dll",