diff --git a/RealHeat/Plugins/ModularFlightIntegrator.dll b/RealHeat/Plugins/ModularFlightIntegrator.dll
deleted file mode 100644
index 39b42aa..0000000
Binary files a/RealHeat/Plugins/ModularFlightIntegrator.dll and /dev/null differ
diff --git a/RealHeat/Plugins/RealHeat.dll b/RealHeat/Plugins/RealHeat.dll
index 9819836..9007519 100644
Binary files a/RealHeat/Plugins/RealHeat.dll and b/RealHeat/Plugins/RealHeat.dll differ
diff --git a/RealHeat/Readme_RH.txt b/RealHeat/Readme_RH.txt
index 7beca4e..3d12f09 100644
--- a/RealHeat/Readme_RH.txt
+++ b/RealHeat/Readme_RH.txt
@@ -10,10 +10,13 @@ Right now it will:
 * Recalculate background radiation temperature (and the density-based interpolation factor used there and in other things) based on the above.
 
 Installation:
-Extract RealHeat folder and ModularFlightIntegrator folders to GameData.
+Extract the RealHeat folder to GameData.
 
 Changelog:
 
+v4.9
+* Recompile for KSP 1.6.1
+
 v4.8
 * Recompile for KSP 1.5.1
 
diff --git a/RealHeat/RealHeat.version b/RealHeat/RealHeat.version
index 7e7884f..6acf9a5 100644
--- a/RealHeat/RealHeat.version
+++ b/RealHeat/RealHeat.version
@@ -8,25 +8,25 @@
   },
   "VERSION": {
     "MAJOR": 4,
-    "MINOR": 8,
+    "MINOR": 9,
     "PATCH": 0,
     "BUILD": 0
   },
   "KSP_VERSION": {
     "MAJOR": 1,
-    "MINOR": 5,
+    "MINOR": 6,
     "PATCH": 1,
     "BUILD": 0
   },
   "KSP_VERSION_MIN": {
     "MAJOR": 1,
-    "MINOR": 5,
+    "MINOR": 6,
     "PATCH": 0,
     "BUILD": 0
   },
   "KSP_VERSION_MAX": {
     "MAJOR": 1,
-    "MINOR": 5,
+    "MINOR": 6,
     "PATCH": 99,
     "BUILD": 0
   }
diff --git a/Source/Checkers.cs b/Source/Checkers.cs
index 046cdab..ea5c441 100644
--- a/Source/Checkers.cs
+++ b/Source/Checkers.cs
@@ -61,7 +61,7 @@ public static bool IsCompatible()
             // Even if you don't lock down functionality, you should return true if your users
             // can expect a future update to be available.
             //
-            return Versioning.version_minor == 5 && Versioning.version_major == 1;
+            return Versioning.version_minor == 6 && Versioning.version_major == 1;
 
             /*-----------------------------------------------*\
             | IMPLEMENTERS SHOULD NOT EDIT BEYOND THIS POINT! |
diff --git a/Source/Properties/AssemblyInfo.cs b/Source/Properties/AssemblyInfo.cs
index 65ab2e5..44acbe7 100644
--- a/Source/Properties/AssemblyInfo.cs
+++ b/Source/Properties/AssemblyInfo.cs
@@ -11,7 +11,7 @@
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("NathanKell and ferram4 and rsparkyc")]
 [assembly: AssemblyProduct("RealHeat")]
-[assembly: AssemblyCopyright("Copyright © 2015 - 2018")]
+[assembly: AssemblyCopyright("Copyright © 2015 - 2019")]
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 
@@ -36,8 +36,8 @@
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
 
-[assembly: AssemblyVersion("0.4.8.0")]
-[assembly: AssemblyFileVersion("0.4.8.0")]
+[assembly: AssemblyVersion("0.4.9.0")]
+[assembly: AssemblyFileVersion("0.4.9.0")]
 
 [assembly: KSPAssembly("RealHeat", 4, 0)]
 [assembly: KSPAssemblyDependency("ModularFlightIntegrator", 1, 0)]
diff --git a/Source/RealHeat.csproj b/Source/RealHeat.csproj
index 48f8bb2..81bbfe2 100644
--- a/Source/RealHeat.csproj
+++ b/Source/RealHeat.csproj
@@ -43,16 +43,16 @@
   <ItemGroup>
     <Reference Include="Assembly-CSharp, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\Dependencies\1.5.1\Assembly-CSharp.dll</HintPath>
+      <HintPath>..\..\Dependencies\1.6.1\Assembly-CSharp.dll</HintPath>
       <Private>False</Private>
     </Reference>
     <Reference Include="ModularFlightIntegrator, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\Dependencies\1.5.1\ModularFlightIntegrator.dll</HintPath>
+      <HintPath>..\..\Dependencies\1.6.1\ModularFlightIntegrator.dll</HintPath>
     </Reference>
     <Reference Include="UnityEngine, Version=0.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\..\Dependencies\1.5.1\UnityEngine.dll</HintPath>
+      <HintPath>..\..\Dependencies\1.6.1\UnityEngine.dll</HintPath>
       <Private>False</Private>
     </Reference>
   </ItemGroup>