diff --git a/CITATION.cff b/CITATION.cff
index 8f2d7bf91..34879d406 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,7 +4,7 @@ message: >-
   If you use this software, please cite it using the
   metadata from this file.
 type: software
-version: 4.9.0-alpha
+version: 4.9.0
 doi: "10.5281/zenodo.3381141"
 repository-code: "https://github.com/Edirom/WeGA-WebApp"
 license:
diff --git a/build.properties b/build.properties
index 6d7f88baf..66e51ea60 100644
--- a/build.properties
+++ b/build.properties
@@ -4,7 +4,7 @@
 #
 project.app=WeGA-WebApp
 project.name=http://weber-gesamtausgabe.de/webapp
-project.version=4.9.0-alpha
+project.version=4.9.0
 build.dir=build
 dist.dir=dist
 tmp.dir=tmp
diff --git a/catalogues/options.xml b/catalogues/options.xml
index 5c4ef46ec..be949f4bf 100644
--- a/catalogues/options.xml
+++ b/catalogues/options.xml
@@ -22,9 +22,9 @@
         <entry xml:id="maxNews">2</entry>
         <entry xml:id="googleWebsiteMetatag">EAO5d_GiQPkJeTGACYYOFahJm2HRNvJUWwIkyw4j0Ys</entry>
         <entry xml:id="microsoftBingWebsiteMetatag">AE39DA5613844228642EE48196AAA94A</entry>
-        <entry xml:id="ODDversion">4.8.0</entry><!-- Versionsnummer der WeGA-ODD Schemata -->
-        <entry xml:id="versionNews">A050106</entry>
-        <entry xml:id="versionDate">2023-08-21</entry>
+        <entry xml:id="ODDversion">4.9.0</entry><!-- Versionsnummer der WeGA-ODD Schemata -->
+        <entry xml:id="versionNews">A050354</entry>
+        <entry xml:id="versionDate">2024-02-05</entry>
         <entry xml:id="cmifID">e4c10c66-9b0b-4f2e-810c-669b0b2f2e20</entry>
     </div>
     <div xml:id="externalPNDResources">
diff --git a/package.json b/package.json
index d75e1a089..8236a66be 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "WeGA-WebApp",
-  "version": "4.9.0-alpha",
+  "version": "4.9.0",
   "description": "Web application for the digital edition of the Carl Maria von Weber Collected Works",
   "main": "controller.xql",
   "repository": "https://github.com/Edirom/WeGA-WebApp.git",