A few more fixes.

Rx.NET/Source/facades/GlobalAssemblyVersion.cs

@@ -18,7 +18,7 @@ using System.Reflection;
 [assembly: AssemblyVersion("3.0.4000.0")]
 #elif NETSTANDARD1_5 || NET462
 [assembly: AssemblyVersion("3.0.5000.0")]
-#elif NETSTANDARD1_6 || NETCOREAPP1_0 || NET463 || NETSTANDARD2_0
+#elif NETSTANDARD1_6 || NETCOREAPP1_0 || NET463 || NET472 || NETSTANDARD2_0
 [assembly: AssemblyVersion("3.0.6000.0")]
 #else // this is here to prevent the build system from complaining. It should never be hit
 [assembly: AssemblyVersion("invalid")]

Rx.NET/Source/tests/Tests.System.Reactive/DispatcherHelpers.cs

@@ -2,7 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT License.
 // See the LICENSE file in the project root for more information. 
 
-#if NETCOREAPP2_1 || NET46 || NETCOREAPP3_1 || CSWINRT
+#if NETCOREAPP2_1 || NET472 || NETCOREAPP3_1 || CSWINRT
 using System.Threading;
 #endif
 #if HAS_DISPATCHER

Rx.NET/Source/tests/Tests.System.Reactive/Tests/Concurrency/SchedulerTest.cs

@@ -375,7 +375,7 @@ namespace ReactiveTests.Tests
         }
 #endif
 
-#if DESKTOPCLR && NET46
+#if DESKTOPCLR && NET472
         [Fact]
         public void Scheduler_Periodic_HostLifecycleManagement()
         {

Rx.NET/Source/tests/Tests.System.Reactive/Tests/Linq/Observable/FromEventPatternTest.cs

@@ -474,7 +474,7 @@ namespace ReactiveTests.Tests
             );
         }
 
-#if DESKTOPCLR && NET46
+#if DESKTOPCLR && NET472
         [Fact]
         public void FromEventPattern_Reflection_Instance_MissingAccessors()
         {