diff --git a/Common/Plugin.dll b/Common/Plugin.dll
index 9eba74f..b7013df 100644
Binary files a/Common/Plugin.dll and b/Common/Plugin.dll differ
diff --git a/README.md b/README.md
index b78f263..9a84050 100644
--- a/README.md
+++ b/README.md
@@ -26,12 +26,12 @@ The sample plugin included with CSpect.
 ## CSpect
 CSpect is a ZXSpectrum emulator by Mike Dailly.
 
-Download the latest version [here](http://www.cspect.org/). These plugins only work with v2.12.20 or newer.
+Download the latest version [here](http://www.cspect.org/). These plugins only work with v2.19.0 or newer.
 
 ## Copyright and Licence
-All plugins except i2C_Sample are copyright © 2019-2020 Robin Verhagen-Guest, and are licensed under [Apache 2.0](https://github.com/Threetwosevensixseven/CSpectPlugins/blob/master/LICENSE).
+All plugins except i2C_Sample are copyright © 2019-2023 Robin Verhagen-Guest, and are licensed under [Apache 2.0](https://github.com/Threetwosevensixseven/CSpectPlugins/blob/master/LICENSE).
 
-CSpect and the i2C_Sample example project are copyright © 1998-2020 Mike Dailly All rights reserved.
+CSpect and the i2C_Sample example project are copyright © 1998-2023 Mike Dailly All rights reserved.
 
 [hdfmonkey](https://github.com/gasman/hdfmonkey) is copyright © Matt Westcott 2010, and is licensed under [GPL-3.0](https://github.com/gasman/hdfmonkey/blob/master/COPYING).
 
diff --git a/RTC/Plugin/RTCPlugin.cs b/RTC/Plugin/RTCPlugin.cs
index 4034094..a174a7c 100644
--- a/RTC/Plugin/RTCPlugin.cs
+++ b/RTC/Plugin/RTCPlugin.cs
@@ -102,5 +102,9 @@ public bool KeyPressed(int _id)
         public void Reset()
         {
         }
+
+        public void OSTick()
+        {
+        }
     }
 }
diff --git a/RTC/RTC.csproj b/RTC/RTC.csproj
index 8709f50..2e7af4f 100644
--- a/RTC/RTC.csproj
+++ b/RTC/RTC.csproj
@@ -16,7 +16,7 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>..\..\..\..\..\..\..\spec\CSpect2_12_20\</OutputPath>
+    <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
diff --git a/RTCSys/RTCSys.csproj b/RTCSys/RTCSys.csproj
index 68c425c..f353cdc 100644
--- a/RTCSys/RTCSys.csproj
+++ b/RTCSys/RTCSys.csproj
@@ -17,7 +17,7 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>..\..\..\..\..\..\..\spec\CSpect2_12_20\</OutputPath>
+    <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
diff --git a/RTCSys/RTCSys_Device.cs b/RTCSys/RTCSys_Device.cs
index 6117724..9383165 100644
--- a/RTCSys/RTCSys_Device.cs
+++ b/RTCSys/RTCSys_Device.cs
@@ -169,5 +169,9 @@ public bool KeyPressed(int _id)
         public void Reset()
         {
         }
+
+        public void OSTick()
+        {
+        }
     }
 }
diff --git a/UARTLogger/UARTLogger.csproj b/UARTLogger/UARTLogger.csproj
index c831530..82a8c07 100644
--- a/UARTLogger/UARTLogger.csproj
+++ b/UARTLogger/UARTLogger.csproj
@@ -16,7 +16,7 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>..\..\..\..\..\..\..\spec\CSpect2_12_20\</OutputPath>
+    <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
diff --git a/UARTLogger/UARTLogger_Device.cs b/UARTLogger/UARTLogger_Device.cs
index c909dfd..a853b10 100644
--- a/UARTLogger/UARTLogger_Device.cs
+++ b/UARTLogger/UARTLogger_Device.cs
@@ -106,5 +106,9 @@ public bool KeyPressed(int _id)
         public void Reset()
         {
         }
+
+        public void OSTick()
+        {
+        }
     }
 }
diff --git a/UARTReplacement/UARTReplacement.csproj b/UARTReplacement/UARTReplacement.csproj
index db0a44e..8c12e7e 100644
--- a/UARTReplacement/UARTReplacement.csproj
+++ b/UARTReplacement/UARTReplacement.csproj
@@ -17,7 +17,7 @@
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
-    <OutputPath>..\..\..\..\..\..\..\spec\CSpect2_12_20\</OutputPath>
+    <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
diff --git a/UARTReplacement/UARTReplacement_Device.cs b/UARTReplacement/UARTReplacement_Device.cs
index 6c41aa9..b2f8173 100644
--- a/UARTReplacement/UARTReplacement_Device.cs
+++ b/UARTReplacement/UARTReplacement_Device.cs
@@ -224,6 +224,10 @@ public bool KeyPressed(int _id)
         public void Reset()
         {
         }
+
+        public void OSTick()
+        {
+        }
     }
 }
 
diff --git a/i2C_Sample/Class1.cs b/i2C_Sample/Class1.cs
index 9c751a4..dd5ca70 100644
--- a/i2C_Sample/Class1.cs
+++ b/i2C_Sample/Class1.cs
@@ -102,5 +102,10 @@ public bool KeyPressed(int _id)
         public void Reset()
         {
         }
+
+        public void OSTick()
+        {
+            throw new NotImplementedException();
+        }
     }
 }