diff --git a/.mailmap b/.mailmap
index 639267c6e2..c000fba894 100644
--- a/.mailmap
+++ b/.mailmap
@@ -32,6 +32,7 @@ Nicolai Buchwitz <nicolai.buchwitz@enda.eu> <nbuchwitz@users.noreply.github.com>
 Noah Hilverling <noah.hilverling@icinga.com> <noah.hilverling@netways.de>
 Noah Hilverling <noah.hilverling@icinga.com> <noah@hilverling.com>
 Philipp Dorschner <philipp.dorschner@netways.de> <pdorschner@netways.de>
+Ravi Kumar Kempapura Srinivasa <ravi.srinivasa@icinga.com> <33730024+raviks789@users.noreply.github.com>
 Sylph Lin <sylph.lin@gmail.com>
 Thomas Gelf <thomas.gelf@icinga.com> <root@squeeze-devel1.osmc.lab>
 Thomas Gelf <thomas.gelf@icinga.com> <tgelf@tgelf-web2dep.(none)>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6d5358e0fc..583179a9ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,16 @@ Please make sure to always read our [Upgrading](doc/80-Upgrading.md) documentati
 
 ## What's New
 
+### What's New in Version 2.9.9
+
+You can find all issues related to this release on our [Roadmap](https://github.com/Icinga/icingaweb2/milestone/78?closed=1).
+
+#### Notable Fixes
+
+* Add/Edit dashlet not possible [#4970](https://github.com/Icinga/icingaweb2/issues/4970)
+* Custom library path + custom library, without slash in its name, results in exception [#4971](https://github.com/Icinga/icingaweb2/issues/4971)
+* Reflected XSS vulnerability in User Backends config page [#4979](https://github.com/Icinga/icingaweb2/issues/4979)
+
 ### What's New in Version 2.9.8
 
 **Notice**: This is a security release. It is recommended to upgrade immediately.
diff --git a/VERSION b/VERSION
index 008858484e..07f0214b93 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v2.9.8
+v2.9.9
diff --git a/library/Icinga/Application/Version.php b/library/Icinga/Application/Version.php
index 9108cf6250..21b8350b07 100644
--- a/library/Icinga/Application/Version.php
+++ b/library/Icinga/Application/Version.php
@@ -8,7 +8,7 @@
  */
 class Version
 {
-    const VERSION = '2.9.8';
+    const VERSION = '2.9.9';
 
     /**
      * Get the version of this instance of Icinga Web 2
diff --git a/modules/doc/module.info b/modules/doc/module.info
index b45f030557..e167fdd28a 100644
--- a/modules/doc/module.info
+++ b/modules/doc/module.info
@@ -1,4 +1,4 @@
 Module: doc
-Version: 2.9.8
+Version: 2.9.9
 Description: Documentation module
  Extracts, shows and exports documentation for Icinga Web 2 and its modules.
diff --git a/modules/migrate/module.info b/modules/migrate/module.info
index 26100c16a1..a723ca779d 100644
--- a/modules/migrate/module.info
+++ b/modules/migrate/module.info
@@ -1,5 +1,5 @@
 Module: migrate
-Version: 2.9.8
+Version: 2.9.9
 Description: Migrate module
  This module was introduced with the domain-aware authentication feature in version 2.5.0.
  It helps you migrating users and user configurations according to a given domain.
diff --git a/modules/monitoring/module.info b/modules/monitoring/module.info
index 11269222a3..b16e519a19 100644
--- a/modules/monitoring/module.info
+++ b/modules/monitoring/module.info
@@ -1,5 +1,5 @@
 Module: monitoring
-Version: 2.9.8
+Version: 2.9.9
 Description: Icinga monitoring module
  IDO accessor and UI for your monitoring. This is the initial instalment for a
  graphical presentation of Icinga environments. The predecessor of Icinga DB.
diff --git a/modules/setup/module.info b/modules/setup/module.info
index 10e13087f8..73480c873a 100644
--- a/modules/setup/module.info
+++ b/modules/setup/module.info
@@ -1,5 +1,5 @@
 Module: setup
-Version: 2.9.8
+Version: 2.9.9
 Description: Setup module
  Web based wizard for setting up Icinga Web 2 and its modules.
  This includes the data backends (e.g. relational database, LDAP),
diff --git a/modules/test/module.info b/modules/test/module.info
index 6746fc766b..eb30a4f580 100644
--- a/modules/test/module.info
+++ b/modules/test/module.info
@@ -1,5 +1,5 @@
 Module: test
-Version: 2.9.8
+Version: 2.9.9
 Description: Translation module
  This module allows developers to run (unit) tests against Icinga Web 2 and
  any of its modules. Usually you do not need to enable this.
diff --git a/modules/translation/module.info b/modules/translation/module.info
index 9c4ff0750a..11b0ea4816 100644
--- a/modules/translation/module.info
+++ b/modules/translation/module.info
@@ -1,5 +1,5 @@
 Module: translation
-Version: 2.9.8
+Version: 2.9.9
 Description: Translation module
  This module allows developers and translators to translate modules for multiple
  languages. You do not need this module to run an internationalized web frontend.