diff --git a/src/Cardknox.NET/Cardknox.cs b/src/Cardknox.NET/Cardknox.cs
index 83ee67c..4aa9b37 100644
--- a/src/Cardknox.NET/Cardknox.cs
+++ b/src/Cardknox.NET/Cardknox.cs
@@ -2137,6 +2137,159 @@ public CardknoxResponse GCBalance(GCBalance _bal, bool force = false)
 
             return new CardknoxResponse(resp);
         }
+
+        /// <summary>
+        /// The Activate command is used to activate a Cardknox gift card.
+        /// </summary>
+        /// <param name="_activate"></param>
+        /// <param name="force">If <see langword="true"/> allows new command to be sent by clearing previous command entries</param>
+        /// <returns></returns>
+        public CardknoxResponse GCActivate(GCActivate _activate, bool force = false)
+        {
+            if (_values.AllKeys.Length > 4 && !force)
+                throw new InvalidOperationException("A new instance of Cardknox is required to perform this operation unless 'force' is set to 'true'.");
+            else if (force)
+            {
+                string[] toRemove = _values.AllKeys;
+                foreach (var v in toRemove)
+                    _values.Remove(v);
+                _values.Add("xKey", _request._key);
+                _values.Add("xVersion", _request._cardknoxVersion);
+                _values.Add("xSoftwareName", _request._software);
+                _values.Add("xSoftwareVersion", _request._softwareVersion);
+            }
+
+            // BEGIN required information
+            _values.Add("xCommand", _activate.Operation);
+            bool requiredAdded = false;
+            // These groups are mutually exclusive
+            if (!IsNullOrWhiteSpace(_activate.CardNum))
+            {
+                _values.Add("xCardNum", _activate.CardNum);
+                if (!IsNullOrWhiteSpace(_activate.CVV))
+                    _values.Add("xCVV", _activate.CVV);
+                if (!IsNullOrWhiteSpace(_activate.Exp))
+                    _values.Add("xExp", _activate.Exp);
+                requiredAdded = true;
+
+                if (IsNullOrWhiteSpace(_activate.Exp))
+                    requiredAdded = false;
+            }
+            else if (!IsNullOrWhiteSpace(_activate.Token))
+            {
+                _values.Add("xToken", _activate.Token);
+                requiredAdded = true;
+            }
+            else if (!IsNullOrWhiteSpace(_activate.MagStripe))
+            {
+                _values.Add("xMagStripe", _activate.MagStripe);
+                requiredAdded = true;
+            }
+            if (!requiredAdded)
+                throw new Exception($"Missing required values. Please refer to the API documentation for the {_activate.Operation} operation.");
+            // END required information
+
+
+            // IP is optional, but is highly recommended for fraud detection
+            if (!IsNullOrWhiteSpace(_activate.IP))
+                _values.Add("xIP", _activate.IP);
+
+            AddCommonFields(_activate);
+
+            int i = 1;
+            foreach (string v in _activate.CustomFields)
+            {
+                _values.Add($"xCustom{i:D2}", v);
+                i++;
+            }
+
+            if (RequestStarted == null)
+                Log.LogRequest(_values);
+            else RequestStarted.Invoke(this, new CardknoxEventArgs(_values));
+
+            var resp = MakeRequest();
+            if (RequestCompleted == null)
+                Log.LogResponse(resp);
+            else RequestCompleted.Invoke(this, new CardknoxEventArgs(resp));
+
+            return new CardknoxResponse(resp);
+        }
+        /// <summary>
+        /// The Activate command is used to activate a Cardknox gift card.
+        /// </summary>
+        /// <param name="_deactivate"></param>
+        /// <param name="force">If <see langword="true"/> allows new command to be sent by clearing previous command entries</param>
+        /// <returns></returns>
+        public CardknoxResponse GCDeactivate(GCDeactivate _deactivate, bool force = false)
+        {
+            if (_values.AllKeys.Length > 4 && !force)
+                throw new InvalidOperationException("A new instance of Cardknox is required to perform this operation unless 'force' is set to 'true'.");
+            else if (force)
+            {
+                string[] toRemove = _values.AllKeys;
+                foreach (var v in toRemove)
+                    _values.Remove(v);
+                _values.Add("xKey", _request._key);
+                _values.Add("xVersion", _request._cardknoxVersion);
+                _values.Add("xSoftwareName", _request._software);
+                _values.Add("xSoftwareVersion", _request._softwareVersion);
+            }
+
+            // BEGIN required information
+            _values.Add("xCommand", _deactivate.Operation);
+            bool requiredAdded = false;
+            // These groups are mutually exclusive
+            if (!IsNullOrWhiteSpace(_deactivate.CardNum))
+            {
+                _values.Add("xCardNum", _deactivate.CardNum);
+                if (!IsNullOrWhiteSpace(_deactivate.CVV))
+                    _values.Add("xCVV", _deactivate.CVV);
+                if (!IsNullOrWhiteSpace(_deactivate.Exp))
+                    _values.Add("xExp", _deactivate.Exp);
+                requiredAdded = true;
+
+                if (IsNullOrWhiteSpace(_deactivate.Exp))
+                    requiredAdded = false;
+            }
+            else if (!IsNullOrWhiteSpace(_deactivate.Token))
+            {
+                _values.Add("xToken", _deactivate.Token);
+                requiredAdded = true;
+            }
+            else if (!IsNullOrWhiteSpace(_deactivate.MagStripe))
+            {
+                _values.Add("xMagStripe", _deactivate.MagStripe);
+                requiredAdded = true;
+            }
+            if (!requiredAdded)
+                throw new Exception($"Missing required values. Please refer to the API documentation for the {_deactivate.Operation} operation.");
+            // END required information
+
+
+            // IP is optional, but is highly recommended for fraud detection
+            if (!IsNullOrWhiteSpace(_deactivate.IP))
+                _values.Add("xIP", _deactivate.IP);
+
+            AddCommonFields(_deactivate);
+
+            int i = 1;
+            foreach (string v in _deactivate.CustomFields)
+            {
+                _values.Add($"xCustom{i:D2}", v);
+                i++;
+            }
+
+            if (RequestStarted == null)
+                Log.LogRequest(_values);
+            else RequestStarted.Invoke(this, new CardknoxEventArgs(_values));
+
+            var resp = MakeRequest();
+            if (RequestCompleted == null)
+                Log.LogResponse(resp);
+            else RequestCompleted.Invoke(this, new CardknoxEventArgs(resp));
+
+            return new CardknoxResponse(resp);
+        }
         #endregion
 
         #region fraud
diff --git a/src/Cardknox.NET/Cardknox.csproj b/src/Cardknox.NET/Cardknox.csproj
index ef7153c..ada8fcd 100644
--- a/src/Cardknox.NET/Cardknox.csproj
+++ b/src/Cardknox.NET/Cardknox.csproj
@@ -8,15 +8,15 @@
     <Product>Cardknox.API.Wrapper</Product>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <RootNamespace>CardknoxApi</RootNamespace>
-    <Version>4.5.3</Version>
+    <Version>4.6</Version>
     <PackageProjectUrl>https://github.com/TheScripters/Cardknox-API-Wrapper</PackageProjectUrl>
     <Description>API Wrapper for Cardknox Payment Processor written in C#
 
 Refer to https://kb.cardknox.com/api for full API reference or https://github.com/TheScripters/Cardknox-API-Wrapper/wiki/ for library reference</Description>
-    <PackageReleaseNotes>Fixed bug in response parser</PackageReleaseNotes>
+    <PackageReleaseNotes>Updated API version to 4.5.8, added Gift Card Activate/Deactivate methods</PackageReleaseNotes>
     <PackageTags>cardknox gateway processor payment api ebt mastercard payments american express amex jcb diners club giftcard gift card discover</PackageTags>
     <Copyright>© 2020 The Scripters</Copyright>
-    <AssemblyVersion>4.5.3.0</AssemblyVersion>
+    <AssemblyVersion>4.6.0.0</AssemblyVersion>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
   </PropertyGroup>
   
diff --git a/src/Cardknox.NET/Operations/GiftCard.cs b/src/Cardknox.NET/Operations/GiftCard.cs
index a6c8c27..e783bbe 100644
--- a/src/Cardknox.NET/Operations/GiftCard.cs
+++ b/src/Cardknox.NET/Operations/GiftCard.cs
@@ -25,4 +25,18 @@ public class GCBalance : Sale
     {
         internal string Operation => "gift:balance";
     }
+    /// <summary>
+    /// The Balance command is used to check the available balance on a Cardknox gift card.
+    /// </summary>
+    public class GCActivate : Sale
+    {
+        internal string Operation => "gift:activate";
+    }
+    /// <summary>
+    /// The Balance command is used to check the available balance on a Cardknox gift card.
+    /// </summary>
+    public class GCDeactivate : Sale
+    {
+        internal string Operation => "gift:deactivate";
+    }
 }