diff --git a/CHANGELOG.md b/CHANGELOG.md
index df5d5ae0..51457ae8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# 1.4.24 (15 October 2021)
+- [#643](https://github.com/WireMock-Net/WireMock.Net/pull/643) - Support edge case: first object, next an array. [feature] contributed by [leolplex](https://github.com/leolplex)
+- [#644](https://github.com/WireMock-Net/WireMock.Net/pull/644) - Mapping headers in OpenAPI [feature] contributed by [leolplex](https://github.com/leolplex)
+- [#649](https://github.com/WireMock-Net/WireMock.Net/pull/649) - Refactor method name MapHeaders and httpStatusCode  contributed by [leolplex](https://github.com/leolplex)
+- [#651](https://github.com/WireMock-Net/WireMock.Net/pull/651) - Implement PatternAsFile for StringMatcher [feature] contributed by [StefH](https://github.com/StefH)
+
 # 1.4.23 (27 September 2021)
 - [#635](https://github.com/WireMock-Net/WireMock.Net/pull/635) - WireMock.Net.FluentAssertions : upgrade to latest FluentAssertions [feature] contributed by [StefH](https://github.com/StefH)
 - [#634](https://github.com/WireMock-Net/WireMock.Net/issues/634) - Upgrade to latest FluentAssertions [bug]
@@ -111,7 +117,6 @@
 - [#549](https://github.com/WireMock-Net/WireMock.Net/issues/549) - WithProxy(...) does not save the mappings to file [bug]
 
 # 1.3.8 (03 December 2020)
-- [#539](https://github.com/WireMock-Net/WireMock.Net/pull/539) - Support for partial JSON matching contributed by [gleb-osokin](https://github.com/gleb-osokin)
 - [#542](https://github.com/WireMock-Net/WireMock.Net/pull/542) - Create dotnet-wiremock tool [feature] contributed by [StefH](https://github.com/StefH)
 - [#543](https://github.com/WireMock-Net/WireMock.Net/pull/543) - Add support for .NET 5 [feature] contributed by [StefH](https://github.com/StefH)
 - [#544](https://github.com/WireMock-Net/WireMock.Net/pull/544) - Use Java 11 in Azure Pipelines (needed for SonarCloud) [feature] contributed by [StefH](https://github.com/StefH)
@@ -119,6 +124,9 @@
 - [#547](https://github.com/WireMock-Net/WireMock.Net/pull/547) - Fix Proxying with SSL and NetCoreApp3.1 [bug] contributed by [StefH](https://github.com/StefH)
 - [#524](https://github.com/WireMock-Net/WireMock.Net/issues/524) - Proxying with SSL Not Working in .NET Core 3.1 [bug]
 
+# 1.3.7 (17 November 2020)
+- [#539](https://github.com/WireMock-Net/WireMock.Net/pull/539) - Support for partial JSON matching contributed by [gleb-osokin](https://github.com/gleb-osokin)
+
 # 1.3.6 (10 November 2020)
 - [#529](https://github.com/WireMock-Net/WireMock.Net/pull/529) - Add assertions for ClientIP, Url and ProxyUrl [feature] contributed by [akamud](https://github.com/akamud)
 - [#535](https://github.com/WireMock-Net/WireMock.Net/pull/535) - WithCallback should use also use enum HttpStatusCode [bug] contributed by [StefH](https://github.com/StefH)
diff --git a/Generate-ReleaseNotes.cmd b/Generate-ReleaseNotes.cmd
index 274e6525..0b74750a 100644
--- a/Generate-ReleaseNotes.cmd
+++ b/Generate-ReleaseNotes.cmd
@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.4.23
+SET version=1.4.24
 
 GitHubReleaseNotes --output CHANGELOG.md --skip-empty-releases --exclude-labels question invalid doc duplicate --version %version% --token %GH_TOKEN%
 
diff --git a/PackageReleaseNotes.txt b/PackageReleaseNotes.txt
index c8bcf40b..391528a5 100644
--- a/PackageReleaseNotes.txt
+++ b/PackageReleaseNotes.txt
@@ -1,5 +1,7 @@
-# 1.4.23 (27 September 2021)
-- #635 WireMock.Net.FluentAssertions : upgrade to latest FluentAssertions [feature]
-- #634 Upgrade to latest FluentAssertions [bug]
+# 1.4.24 (15 October 2021)
+- #643 Support edge case: first object, next an array. [feature]
+- #644 Mapping headers in OpenAPI [feature]
+- #649 Refactor method name MapHeaders and httpStatusCode 
+- #651 Implement PatternAsFile for StringMatcher [feature]
 
 The full release notes can be found here: https://github.com/WireMock-Net/WireMock.Net/blob/master/CHANGELOG.md
\ No newline at end of file
diff --git a/src/WireMock.Net/Matchers/NotNullOrEmptyMatcher.cs b/src/WireMock.Net/Matchers/NotNullOrEmptyMatcher.cs
index 00354933..4b16b48e 100644
--- a/src/WireMock.Net/Matchers/NotNullOrEmptyMatcher.cs
+++ b/src/WireMock.Net/Matchers/NotNullOrEmptyMatcher.cs
@@ -1,4 +1,6 @@
 using System.Linq;
+using AnyOfTypes;
+using WireMock.Models;
 
 namespace WireMock.Matchers
 {
@@ -6,7 +8,7 @@ namespace WireMock.Matchers
     /// NotNullOrEmptyMatcher
     /// </summary>
     /// <seealso cref="IObjectMatcher" />
-    public class NotNullOrEmptyMatcher : IObjectMatcher
+    public class NotNullOrEmptyMatcher : IObjectMatcher, IStringMatcher
     {
         /// <inheritdoc cref="IMatcher.Name"/>
         public string Name => "NotNullOrEmptyMatcher";
@@ -48,5 +50,19 @@ namespace WireMock.Matchers
 
             return MatchBehaviourHelper.Convert(MatchBehaviour, MatchScores.ToScore(match));
         }
+
+        /// <inheritdoc cref="IStringMatcher.IsMatch"/>
+        public double IsMatch(string input)
+        {
+            var match = !string.IsNullOrEmpty(input);
+
+            return MatchBehaviourHelper.Convert(MatchBehaviour, MatchScores.ToScore(match));
+        }
+
+        /// <inheritdoc cref="IStringMatcher.GetPatterns"/>
+        public AnyOf<string, StringPattern>[] GetPatterns()
+        {
+            return new AnyOf<string, StringPattern>[0];
+        }
     }
 }
\ No newline at end of file
diff --git a/test/WireMock.Net.Tests/Matchers/NotNullOrEmptyMatcherTests.cs b/test/WireMock.Net.Tests/Matchers/NotNullOrEmptyMatcherTests.cs
index ca5c7242..151fec55 100644
--- a/test/WireMock.Net.Tests/Matchers/NotNullOrEmptyMatcherTests.cs
+++ b/test/WireMock.Net.Tests/Matchers/NotNullOrEmptyMatcherTests.cs
@@ -36,11 +36,25 @@ namespace WireMock.Net.Tests.Matchers
         [InlineData(null, 0.0)]
         [InlineData("", 0.0)]
         [InlineData("x", 1.0)]
-        public void NotNullOrEmptyMatcher_IsMatch_String(string data, double expected)
+        public void NotNullOrEmptyMatcher_IsMatch_String(string @string, double expected)
         {
             // Act
             var matcher = new NotNullOrEmptyMatcher();
-            double result = matcher.IsMatch(data);
+            double result = matcher.IsMatch(@string);
+
+            // Assert
+            result.Should().Be(expected);
+        }
+
+        [Theory]
+        [InlineData(null, 0.0)]
+        [InlineData("", 0.0)]
+        [InlineData("x", 1.0)]
+        public void NotNullOrEmptyMatcher_IsMatch_StringAsObject(string @string, double expected)
+        {
+            // Act
+            var matcher = new NotNullOrEmptyMatcher();
+            double result = matcher.IsMatch((object)@string);
 
             // Assert
             result.Should().Be(expected);
@@ -56,5 +70,15 @@ namespace WireMock.Net.Tests.Matchers
             // Assert
             result.Should().Be(1.0);
         }
+
+        [Fact]
+        public void NotNullOrEmptyMatcher_GetPatterns_Should_Return_EmptyArray()
+        {
+            // Act
+            var patterns = new NotNullOrEmptyMatcher().GetPatterns();
+
+            // Assert
+            patterns.Should().BeEmpty();
+        }
     }
 }
\ No newline at end of file