diff --git a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net40.approved.txt b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net40.approved.txt
index 645b787c3..4e6439791 100644
--- a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net40.approved.txt
+++ b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net40.approved.txt
@@ -248,6 +248,8 @@ namespace FakeItEasy
         public static void ClearRecordedCalls(object fakedObject) { }
         public static System.Collections.Generic.IEnumerable<FakeItEasy.Core.ICompletedFakeObjectCall> GetCalls(object fakedObject) { }
         public static FakeItEasy.Core.FakeManager GetFakeManager(object fakedObject) { }
+        public static bool IsFake(object potentialFake) { }
+        public static bool TryGetFakeManager(object potentialFake, out FakeItEasy.Core.FakeManager fakeManager) { }
     }
     public class static FakeObjectCallExtensions
     {
diff --git a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net45.approved.txt b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net45.approved.txt
index ccd7e6c7f..7ad1966a1 100644
--- a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net45.approved.txt
+++ b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/net45.approved.txt
@@ -248,6 +248,8 @@ namespace FakeItEasy
         public static void ClearRecordedCalls(object fakedObject) { }
         public static System.Collections.Generic.IEnumerable<FakeItEasy.Core.ICompletedFakeObjectCall> GetCalls(object fakedObject) { }
         public static FakeItEasy.Core.FakeManager GetFakeManager(object fakedObject) { }
+        public static bool IsFake(object potentialFake) { }
+        public static bool TryGetFakeManager(object potentialFake, out FakeItEasy.Core.FakeManager fakeManager) { }
     }
     public class static FakeObjectCallExtensions
     {
diff --git a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard1.6.approved.txt b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard1.6.approved.txt
index 822ce6766..b06016b1c 100644
--- a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard1.6.approved.txt
+++ b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard1.6.approved.txt
@@ -173,6 +173,8 @@ namespace FakeItEasy
         public static void ClearRecordedCalls(object fakedObject) { }
         public static System.Collections.Generic.IEnumerable<FakeItEasy.Core.ICompletedFakeObjectCall> GetCalls(object fakedObject) { }
         public static FakeItEasy.Core.FakeManager GetFakeManager(object fakedObject) { }
+        public static bool IsFake(object potentialFake) { }
+        public static bool TryGetFakeManager(object potentialFake, out FakeItEasy.Core.FakeManager fakeManager) { }
     }
     public class static FakeObjectCallExtensions
     {
diff --git a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.0.approved.txt b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.0.approved.txt
index e9d74ab9b..fed181207 100644
--- a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.0.approved.txt
+++ b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.0.approved.txt
@@ -173,6 +173,8 @@ namespace FakeItEasy
         public static void ClearRecordedCalls(object fakedObject) { }
         public static System.Collections.Generic.IEnumerable<FakeItEasy.Core.ICompletedFakeObjectCall> GetCalls(object fakedObject) { }
         public static FakeItEasy.Core.FakeManager GetFakeManager(object fakedObject) { }
+        public static bool IsFake(object potentialFake) { }
+        public static bool TryGetFakeManager(object potentialFake, out FakeItEasy.Core.FakeManager fakeManager) { }
     }
     public class static FakeObjectCallExtensions
     {
diff --git a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.1.approved.txt b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.1.approved.txt
index a61f8be30..8a9a4a6e0 100644
--- a/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.1.approved.txt
+++ b/tests/FakeItEasy.Tests.Approval/ApprovedApi/FakeItEasy/netstandard2.1.approved.txt
@@ -173,6 +173,8 @@ namespace FakeItEasy
         public static void ClearRecordedCalls(object fakedObject) { }
         public static System.Collections.Generic.IEnumerable<FakeItEasy.Core.ICompletedFakeObjectCall> GetCalls(object fakedObject) { }
         public static FakeItEasy.Core.FakeManager GetFakeManager(object fakedObject) { }
+        public static bool IsFake(object potentialFake) { }
+        public static bool TryGetFakeManager(object potentialFake, out FakeItEasy.Core.FakeManager fakeManager) { }
     }
     public class static FakeObjectCallExtensions
     {