diff --git a/build-common/NHibernate.props b/build-common/NHibernate.props
index 11300e597e8..d56d15ccbc4 100644
--- a/build-common/NHibernate.props
+++ b/build-common/NHibernate.props
@@ -5,7 +5,7 @@
     <NhVersion     Condition="'$(NhVersion)' == ''"    >5.5</NhVersion>
     <VersionPatch  Condition="'$(VersionPatch)'  == ''">1</VersionPatch>
     <!-- Clear VersionSuffix for making release and set it to dev for making development builds -->
-    <VersionSuffix Condition="'$(VersionSuffix)' == ''">dev</VersionSuffix>
+    <VersionSuffix Condition="'$(VersionSuffix)' == ''"></VersionSuffix>
     <LangVersion Condition="'$(MSBuildProjectExtension)' != '.vbproj'">9.0</LangVersion>
 
     <VersionPrefix Condition="'$(VersionPrefix)' == ''">$(NhVersion).$(VersionPatch)</VersionPrefix>
diff --git a/releasenotes.txt b/releasenotes.txt
index 16c9cc81b84..9946de3fe76 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -1,4 +1,21 @@
-Build 5.5.0
+Build 5.5.1
+=============================
+
+Release notes - NHibernate - Version 5.5.1
+
+3 issues were resolved in this release.
+
+** Bug
+
+   * #3465 Invalid SQL created for some joins in a subquery
+
+** Task
+
+   * #3509 Release 5.5.1
+   * #3508 Merge 5.4.8 into 5.5.x
+
+
+Build 5.5.0
 =============================
 
 Release notes - NHibernate - Version 5.5.0