diff --git a/Changes b/Changes
index 35f4e1e8a..ca5d066b2 100644
--- a/Changes
+++ b/Changes
@@ -1,6 +1,6 @@
 Revision history for GLPI agent
 
-1.9 not yet released
+1.9 Tue, 28 May 2024
 
 inventory:
 * fix #676: Always include OPERATINGSYSTEM section if SOFTWARES one is in partial
@@ -10,21 +10,27 @@ inventory:
 * fix #675: Enhanced MSSQL database inventory on Windows by discovering installed
   instances.
 * fix #680: Enhanced disk storage serialnumber support on Windows
+* Bump Inventory task version to 1.16
 
 remoteinventory:
 * fix special characters handling in passwords
+* Bump RemoteInventory task version to 1.5
 
 netdiscovery/netinventory:
 * fix #642: Support snmp-retries configuration parameter to set snmp requests
   maximum retries in place of the default of 0.
   glpi-netdiscovery & glpi-netinventory supports --retries option.
+* Bump NetDiscovery task version to 6.2
+* Bump NetInventory task version to 6.2
 
 deploy:
 * Fix: Avoid possible crash on windows while using WTS for User Interactions
+* Bump Deploy task version to 3.1
 
 toolbox:
 * fix #582, #596, #671: UTF-8 and special characters are now supported in user and
   password for RemoteInventory credentials
+* Bump ToolBox plugin version to 1.4
 
 packaging:
 * Fix: Call SetDllDirectory system API to help finding provided DLL libraries on windows
diff --git a/Makefile.PL b/Makefile.PL
index 26cf98f3f..5945b5a93 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -14,7 +14,7 @@ include 'Module::AutoInstall';
 abstract 'GLPI unified Agent for UNIX, Linux, Windows and MacOSX';
 license 'gpl';
 repository 'https://github.com/glpi-project/glpi-agent';
-version '1.9-dev';
+version '1.9';
 perl_version '5.008';
 authors 'Teclib Editions';
 
diff --git a/contrib/windows/glpi-agent-deployment.vbs b/contrib/windows/glpi-agent-deployment.vbs
index 587619550..186e25f13 100644
--- a/contrib/windows/glpi-agent-deployment.vbs
+++ b/contrib/windows/glpi-agent-deployment.vbs
@@ -28,7 +28,7 @@
 '  ------------------------------------------------------------------------
 '
 '  @package   GLPI Agent
-'  @version   1.8
+'  @version   1.9
 '  @file      contrib/windows/glpi-agent-deployment.vbs
 '  @author(s) Benjamin Accary <meldrone@orange.fr>
 '             Christophe Pujol <chpujol@gmail.com>
@@ -65,12 +65,12 @@ Dim Setup, SetupArchitecture, SetupLocation, SetupNightlyLocation, SetupOptions,
 ' SetupVersion
 '    Setup version with the pattern <major>.<minor>.<release>[-<package>]
 '
-SetupVersion = "1.8"
+SetupVersion = "1.9"
 
 ' When using a nightly built version, uncomment the following SetupVersion definition line
 ' replacing gitABCDEFGH with the most recent git revision found on the nightly builds site
 ' In that case, SetupNightlyLocation will be selected as location in place of SetupLocation
-'SetupVersion = "1.9-gitABCDEFGH"
+'SetupVersion = "1.10-gitABCDEFGH"
 
 ' SetupLocation
 '    Depending on your needs or your environment, you can use either a HTTP or
diff --git a/debian/changelog b/debian/changelog
index cac0389ec..e98275ddd 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+glpi-agent (1:1.9-1) unstable; urgency=medium
+
+  * New upstream release 1.9
+
+ -- Guillaume Bougard <gbougard@teclib.com>  Tue, 28 May 2024 10:52:08 +0200
+
 glpi-agent (1:1.8-1) unstable; urgency=medium
 
   * New upstream release 1.8
diff --git a/lib/GLPI/Agent/Version.pm b/lib/GLPI/Agent/Version.pm
index e5c115ccb..93aecad23 100644
--- a/lib/GLPI/Agent/Version.pm
+++ b/lib/GLPI/Agent/Version.pm
@@ -3,7 +3,7 @@ package GLPI::Agent::Version;
 use strict;
 use warnings;
 
-our $VERSION = "1.9-dev";
+our $VERSION = "1.9";
 our $PROVIDER = "GLPI";
 our $COMMENTS = [];
 
@@ -31,5 +31,5 @@ agent issue is reported.
 One very useful information should be first defined like in that example:
 
 our $COMMENTS = [
-    "Based on GLPI Agent 1.9-dev"
+    "Based on GLPI Agent 1.9"
 ];