diff --git a/CHANGELOG.md b/CHANGELOG.md
index 464a098f..8b0285fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 1.9.0
+## Unreleased
 
 * Improve compatibility with WordPress 6.1 and `WP_Textdomain_Registry`.
 * Minimum WordPress version requirement has been increased to 6.1.
diff --git a/preferred-languages.php b/preferred-languages.php
index 415ef103..37fa54a2 100644
--- a/preferred-languages.php
+++ b/preferred-languages.php
@@ -3,7 +3,7 @@
  * Plugin Name: Preferred Languages
  * Plugin URI:  /~https://github.com/swissspidy/preferred-languages/
  * Description: Choose languages for displaying WordPress in, in order of preference.
- * Version:     1.9.0
+ * Version:     2.0.0-beta.1
  * Author:      Pascal Birchler
  * Author URI:  https://pascalbirchler.com
  * License:     GPL-2.0+
diff --git a/readme.txt b/readme.txt
index 02798467..fce1bcdf 100644
--- a/readme.txt
+++ b/readme.txt
@@ -2,7 +2,7 @@
 Contributors: swissspidy
 Tags: internationalization, i18n, localization, l10n, language, locale, translation
 Tested up to: 6.1
-Stable tag: 1.9.0
+Stable tag: 1.8.0
 License: GPLv2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 
@@ -35,7 +35,6 @@ It provides three parameters:
 **Warning**: Since this is a potentially slow/expensive process involving the loading of multiple translation files, it's recommended to use it
 sparingly and only for specific domains.
 
-
 = Get Involved =
 
 Active development is taking place on [GitHub](/~https://github.com/swissspidy/preferred-languages).
@@ -53,6 +52,6 @@ For the plugin's changelog, please head over to [the GitHub repository](https://
 
 == Upgrade Notice ==
 
-= 1.9.0 =
+= 2.0.0 =
 
-This release improves compatibility with locale switching and WordPress 6.1.
+This release improves compatibility with locale switching and WordPress 6.1, and fixes various bugs.