diff --git a/.gitignore b/.gitignore
index 70e7343bd..c0d8fb090 100644
--- a/.gitignore
+++ b/.gitignore
@@ -230,3 +230,4 @@ artifacts
 
 # TypeScript (only needed for debugging)
 *.js.map
+launchSettings.json
diff --git a/ReleaseNotes.md b/ReleaseNotes.md
index 54358aae6..f7ea064dd 100644
--- a/ReleaseNotes.md
+++ b/ReleaseNotes.md
@@ -1,33 +1,36 @@
-### New in 1.0.0.139 (Released 2015/10/12)
-* Introduced a build based on Fake.
+### NEw in 3.1.3 (Released 2018/04/17)
+* Fix in email address validation (#18)
 
-### New in 2.0.0.149 (Released 2015/10/15)
-* Made Qowaiv.Guard internal.
+### New in 3.1.2 (Released 2017/12/12)
+* New Base-32 implementation
 
-### New in 2.0.0.150 (Released 2015/11/22)
-* Fix NuGet dependencies and use .net 4.5.
+### New in 3.1.1 (Released 2017/11/22)
+* Introduced Component Model validation
 
-### New in 2.0.0.159 (Released 2015/12/03)
-* Fixed an issue with negative values for StreamSize.
+### New in 3.0.0.223 (Released 2016/11/30)
+* Introduced namespaces Financial, Globalization, Security, Statistics, and moved types from root namespace to those.
+* Introduced Money.
 
-### New in 2.0.0.164 (Released 2015/12/04)
-* Added Qowaiv.Statistics.Elo.
+### New in 2.0.2.186 (Released 2016/04/15)
+* Add Qowaiv.Text.Base32.
+* Added explicit conversion from Gender to Byte.
 
 ### New in 2.0.1.179 (Released 2016/02/29)
 * Internal refactoring based on SonarLint recommendations.
 * Converted solution to Visual Studio 2015.
 * Extended country and currency definitions.
 
-### New in 2.0.2.186 (Released 2016/04/15)
-* Add Qowaiv.Text.Base32.
-* Added explicit conversion from Gender to Byte.
+### New in 2.0.0.164 (Released 2015/12/04)
+* Added Qowaiv.Statistics.Elo.
 
-### New in 3.0.0.223 (Released 2016/11/30)
-* Introduced namespaces Financial, Globalization, Security, Statistics, and moved types from root namespace to those.
-* Introduced Money.
+### New in 2.0.0.159 (Released 2015/12/03)
+* Fixed an issue with negative values for StreamSize.
 
-### New in 3.1.1 (Released 2017/11/22)
-* Introduced Component Model validation
+### New in 2.0.0.150 (Released 2015/11/22)
+* Fix NuGet dependencies and use .net 4.5.
 
-### New in 3.1.2 (Released 2017/12/12)
-* New Base-32 implementation
+### New in 2.0.0.149 (Released 2015/10/15)
+* Made Qowaiv.Guard internal.
+
+### New in 1.0.0.139 (Released 2015/10/12)
+* Introduced a build based on Fake.
diff --git a/version.props b/version.props
index ef5b7d092..336d6f8a8 100644
--- a/version.props
+++ b/version.props
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?><!-- This file may be overwritten by automation. Only values allowed here are VersionPrefix and VersionSuffix.  -->
 <Project>
     <PropertyGroup>
-        <VersionPrefix>3.1.2</VersionPrefix>
+        <VersionPrefix>3.1.3</VersionPrefix>
         <!--<VersionSuffix>netstandard2-0.1</VersionSuffix>-->
     </PropertyGroup>
 </Project>