diff --git a/build-common/NHibernate.props b/build-common/NHibernate.props
index 3c2d1bdc62..a04cab397a 100644
--- a/build-common/NHibernate.props
+++ b/build-common/NHibernate.props
@@ -3,7 +3,7 @@
 
   <PropertyGroup>
     <NhVersion     Condition="'$(NhVersion)' == ''"    >5.4</NhVersion>
-    <VersionPatch  Condition="'$(VersionPatch)'  == ''">8</VersionPatch>
+    <VersionPatch  Condition="'$(VersionPatch)'  == ''">9</VersionPatch>
     <!-- Clear VersionSuffix for making release and set it to dev for making development builds -->
     <VersionSuffix Condition="'$(VersionSuffix)' == ''"></VersionSuffix>
     <LangVersion Condition="'$(MSBuildProjectExtension)' != '.vbproj'">9.0</LangVersion>
diff --git a/releasenotes.txt b/releasenotes.txt
index 2351054af6..56edaa0676 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -1,4 +1,24 @@
-Build 5.4.8
+Build 5.4.9
+=============================
+
+Release notes - NHibernate - Version 5.4.9
+
+6 issues were resolved in this release, including CVE-2024-39677.
+
+** Bug
+
+   * #3547 Handle SQL injection vulnerabilities within ObjectToSQLString
+
+** Task
+
+   * #3576 Release 5.4.9
+   * #3558 Migrate AppVeyor & TC builds to PostgreSQL 13
+   * #3545 Upgrade Npgsql to a non vulnerable version
+   * #3544 Upgrade vulnerable test dependencies
+   * #3517 Obsolete vulnerable literal AddColumn
+
+
+Build 5.4.8
 =============================
 
 Release notes - NHibernate - Version 5.4.8