diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59d0e63..ea49139 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,28 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.0] - 2023-11-29
+
+### Commits
+
+- Use `str_start_with`, WordPress has polyfill. ([035d940](https://github.com/pronamic/wp-pronamic-client/commit/035d94043247c2018a1913aa3a2aad4997390ea3))
+- Added the new Mollie user agent library. ([666d48b](https://github.com/pronamic/wp-pronamic-client/commit/666d48bdd78d8a3852198a51623d725577051742))
+- Use the new Pronamic updater library. ([32b5ad0](https://github.com/pronamic/wp-pronamic-client/commit/32b5ad0a3659a872caa5fa49facf2170699ceb4e))
+- ncu ([86ea0b1](https://github.com/pronamic/wp-pronamic-client/commit/86ea0b166cb0e5dd8ee3fa155b2bf7d8ec737e41))
+- Use Jetpack autoloader. ([962d77a](https://github.com/pronamic/wp-pronamic-client/commit/962d77af67855daa21669950a5e447fcf513994b))
+- Fixed PHP warnings about dynamic properties. ([e85404d](https://github.com/pronamic/wp-pronamic-client/commit/e85404d60853ba83e5fa26a2a34b7ad6860c9481))
+
+### Composer
+
+- Added `php` `>=8.0`.
+- Added `automattic/jetpack-autoloader` `^2.12`.
+- Added `pronamic/pronamic-mollie-user-agent` `^1.0`.
+- Added `pronamic/pronamic-wp-updater` `^1.0`.
+
+Full set of changes: [`1.9.8...2.0.0`][2.0.0]
+
+[2.0.0]: https://github.com/pronamic/wp-pronamic-client/compare/v1.9.8...v2.0.0
+
 ## 1.9.8
 - Update feed URLs.
 - Also override on SEO tools page.
diff --git a/package.json b/package.json
index e5c94d0..389f686 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "pronamic-client",
-	"version": "1.9.8",
+	"version": "2.0.0",
 	"description": "WordPress plugin for Pronamic clients.",
 	"repository": {
 		"type": "git",
diff --git a/pronamic-client.php b/pronamic-client.php
index a70c2d4..cc17a01 100644
--- a/pronamic-client.php
+++ b/pronamic-client.php
@@ -4,7 +4,7 @@
 Plugin URI: https://www.pronamic.eu/plugins/pronamic-client/
 Description: WordPress plugin for Pronamic clients.
 
-Version: 1.9.8
+Version: 2.0.0
 Requires at least: 3.0
 
 Author: Pronamic
diff --git a/readme.txt b/readme.txt
index 2578613..db783ec 100644
--- a/readme.txt
+++ b/readme.txt
@@ -3,7 +3,7 @@ Contributors: pronamic, remcotolsma
 Tags: pronamic, client, update, plugin, theme, extension, plugins, themes, extensions
 Requires at least: 3.0
 Tested up to: 6.4
-Stable tag: 1.9.8
+Stable tag: 2.0.0
 
 WordPress plugin for Pronamic clients.