diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f76391b..74d56d58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## [Unreleased]
 
+## [6.0.0] - 2022-01-07
+
 This is a release with breaking changes. Please review the following changes and adapt your application where needed.
 
 The supported way to interact with the SDK is to instantiate Components with the `Kreait\Firebase\Factory::create*`
@@ -87,4 +89,5 @@ methods.
     * `Kreait\Firebase\Value\Uid`
     * `Kreait\Firebase\Value\Url`
 
-[Unreleased]: https://github.com/kreait/firebase-php/compare/5.x...6.x
+[Unreleased]: https://github.com/kreait/firebase-php/compare/6.0.0...6.x
+[6.0.0]: https://github.com/kreait/firebase-php/compare/5.x...6.0.0
diff --git a/docs/conf.py b/docs/conf.py
index 9fd95293..60de4da6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -9,7 +9,7 @@
 project = u'Firebase Admin SDK for PHP'
 author = u'Jérôme Gamez'
 copyright = u'Jérôme Gamez'
-version = u'5.x'
+version = u'6.x'
 html_title = u'Firebase Admin SDK for PHP Documentation'
 html_short_title = u'Firebase Admin SDK for PHP'
 
@@ -41,7 +41,7 @@
   "display_github": True,
   "github_user": "kreait",
   "github_repo": "firebase-php",
-  "github_version": "master",
+  "github_version": "6.x",
   "conf_py_path": "/docs/",
   "source_suffix": ".rst",
 }
diff --git a/src/Firebase/Exception/Database/DatabaseNotFound.php b/src/Firebase/Exception/Database/DatabaseNotFound.php
index 429b05c8..ec85f2d2 100644
--- a/src/Firebase/Exception/Database/DatabaseNotFound.php
+++ b/src/Firebase/Exception/Database/DatabaseNotFound.php
@@ -43,7 +43,7 @@ public static function fromUri(UriInterface $uri): self
             suffix.
 
             For instructions on how to set the name of the used Realtime Database, please
-            see https://firebase-php.readthedocs.io/en/5.x/#quick-start
+            see https://firebase-php.readthedocs.io/en/6.x/#quick-start
 
 
             MESSAGE;