diff --git a/build-common/NHibernate.props b/build-common/NHibernate.props
index 6cad2a32da7..2bc8d025dcf 100644
--- a/build-common/NHibernate.props
+++ b/build-common/NHibernate.props
@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <NhVersion     Condition="'$(NhVersion)' == ''"    >5.3</NhVersion>
-    <VersionPatch  Condition="'$(VersionPatch)'  == ''">19</VersionPatch>
+    <VersionPatch  Condition="'$(VersionPatch)'  == ''">20</VersionPatch>
     <!-- Clear VersionSuffix for making release and set it to dev for making development builds -->
     <VersionSuffix Condition="'$(VersionSuffix)' == ''"></VersionSuffix>
 
diff --git a/releasenotes.txt b/releasenotes.txt
index c7317d2b4f6..732c2ca7df4 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -1,4 +1,20 @@
-Build 5.3.19
+Build 5.3.20
+=============================
+
+Release notes - NHibernate - Version 5.3.20
+
+2 issues were resolved in this release.
+
+** Bug
+
+   * #3438 DB2/400: ArgumentException Column 'SQL_TYPE_NAME' does not belong to table DataTypes
+
+** Task
+
+   * #3454 Release 5.3.20
+
+
+Build 5.3.19
 =============================
 
 Release notes - NHibernate - Version 5.3.19