diff --git a/projects/SelfTest/Baselines/console.std.approved.txt b/projects/SelfTest/Baselines/console.std.approved.txt
index 81dfd96c..ecd074a5 100644
--- a/projects/SelfTest/Baselines/console.std.approved.txt
+++ b/projects/SelfTest/Baselines/console.std.approved.txt
@@ -890,6 +890,6 @@ with expansion:
   "first" == "second"
 
 ===============================================================================
-test cases: 162 | 117 passed | 43 failed |  2 failed as expected
-assertions: 948 | 844 passed | 86 failed | 18 failed as expected
+test cases: 163 | 118 passed | 43 failed |  2 failed as expected
+assertions: 953 | 849 passed | 86 failed | 18 failed as expected
 
diff --git a/projects/SelfTest/Baselines/console.sw.approved.txt b/projects/SelfTest/Baselines/console.sw.approved.txt
index 13a187d0..55137b31 100644
--- a/projects/SelfTest/Baselines/console.sw.approved.txt
+++ b/projects/SelfTest/Baselines/console.sw.approved.txt
@@ -304,6 +304,42 @@ TrickyTests.cpp:<line number>: FAILED:
 with expansion:
   {?} == {?}
 
+-------------------------------------------------------------------------------
+Absolute margin
+-------------------------------------------------------------------------------
+ApproxTests.cpp:<line number>
+...............................................................................
+
+ApproxTests.cpp:<line number>:
+PASSED:
+  REQUIRE( 104.0 != Approx(100.0) )
+with expansion:
+  104.0 != Approx( 100.0 )
+
+ApproxTests.cpp:<line number>:
+PASSED:
+  REQUIRE( 104.0 == Approx(100.0).margin(5) )
+with expansion:
+  104.0 == Approx( 100.0 )
+
+ApproxTests.cpp:<line number>:
+PASSED:
+  REQUIRE( 104.0 != Approx(100.0).margin(3) )
+with expansion:
+  104.0 != Approx( 100.0 )
+
+ApproxTests.cpp:<line number>:
+PASSED:
+  REQUIRE( 100.3 != Approx(100.0) )
+with expansion:
+  100.3 != Approx( 100.0 )
+
+ApproxTests.cpp:<line number>:
+PASSED:
+  REQUIRE( 100.3 == Approx(100.0).margin(0.5) )
+with expansion:
+  100.3 == Approx( 100.0 )
+
 -------------------------------------------------------------------------------
 AllOf matcher
 -------------------------------------------------------------------------------
@@ -9288,6 +9324,6 @@ MiscTests.cpp:<line number>:
 PASSED:
 
 ===============================================================================
-test cases: 162 | 116 passed | 44 failed |  2 failed as expected
-assertions: 950 | 844 passed | 88 failed | 18 failed as expected
+test cases: 163 | 117 passed | 44 failed |  2 failed as expected
+assertions: 955 | 849 passed | 88 failed | 18 failed as expected
 
diff --git a/projects/SelfTest/Baselines/junit.sw.approved.txt b/projects/SelfTest/Baselines/junit.sw.approved.txt
index 23044dc6..400b1c8b 100644
--- a/projects/SelfTest/Baselines/junit.sw.approved.txt
+++ b/projects/SelfTest/Baselines/junit.sw.approved.txt
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <testsuitesspanner>
-  <testsuite name="<exe-name>" errors="13" failures="76" tests="951" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
+  <testsuite name="<exe-name>" errors="13" failures="76" tests="956" hostname="tbd" time="{duration}" timestamp="{iso8601-timestamp}">
     <testcase classname="global" name="# A test name that starts with a #" time="{duration}"/>
     <testcase classname="global" name="#542" time="{duration}"/>
     <testcase classname="global" name="#809" time="{duration}"/>
@@ -63,6 +63,7 @@ TrickyTests.cpp:<line number>
 TrickyTests.cpp:<line number>
       </failure>
     </testcase>
+    <testcase classname="global" name="Absolute margin" time="{duration}"/>
     <testcase classname="global" name="AllOf matcher" time="{duration}"/>
     <testcase classname="global" name="An expression with side-effects should only be evaluated once" time="{duration}"/>
     <testcase classname="global" name="An unchecked exception reports the line of the last assertion" time="{duration}">
diff --git a/projects/SelfTest/Baselines/xml.sw.approved.txt b/projects/SelfTest/Baselines/xml.sw.approved.txt
index f62de9e3..62e3abaf 100644
--- a/projects/SelfTest/Baselines/xml.sw.approved.txt
+++ b/projects/SelfTest/Baselines/xml.sw.approved.txt
@@ -341,6 +341,49 @@
       </Expression>
       <OverallResult success="false"/>
     </TestCase>
+    <TestCase name="Absolute margin" tags="[Approx]" filename="projects/<exe-name>/ApproxTests.cpp" >
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/ApproxTests.cpp" >
+        <Original>
+          104.0 != Approx(100.0)
+        </Original>
+        <Expanded>
+          104.0 != Approx( 100.0 )
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/ApproxTests.cpp" >
+        <Original>
+          104.0 == Approx(100.0).margin(5)
+        </Original>
+        <Expanded>
+          104.0 == Approx( 100.0 )
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/ApproxTests.cpp" >
+        <Original>
+          104.0 != Approx(100.0).margin(3)
+        </Original>
+        <Expanded>
+          104.0 != Approx( 100.0 )
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/ApproxTests.cpp" >
+        <Original>
+          100.3 != Approx(100.0)
+        </Original>
+        <Expanded>
+          100.3 != Approx( 100.0 )
+        </Expanded>
+      </Expression>
+      <Expression success="true" type="REQUIRE" filename="projects/<exe-name>/ApproxTests.cpp" >
+        <Original>
+          100.3 == Approx(100.0).margin(0.5)
+        </Original>
+        <Expanded>
+          100.3 == Approx( 100.0 )
+        </Expanded>
+      </Expression>
+      <OverallResult success="true"/>
+    </TestCase>
     <TestCase name="AllOf matcher" tags="[matchers]" filename="projects/<exe-name>/MatchersTests.cpp" >
       <Expression success="true" type="CHECK_THAT" filename="projects/<exe-name>/MatchersTests.cpp" >
         <Original>
@@ -9842,7 +9885,7 @@ spanner      <OverallResult success="true"/>
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="844" failures="89" expectedFailures="18"/>
+    <OverallResults successes="849" failures="89" expectedFailures="18"/>
   </Group>
-  <OverallResults successes="844" failures="88" expectedFailures="18"/>
+  <OverallResults successes="849" failures="88" expectedFailures="18"/>
 </Catch>