diff --git a/CHANGELOG.md b/CHANGELOG.md
index 149e2686..442c082c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,19 @@
 
 ## Version 3.x (for phpBB 3.3)
 
+### 3.1.0 - 2026-09-02
+
+- Added a language dashboard for managing every installed language and viewing each ruleset's rule count and publication status.
+- Added support for copying complete rulesets between languages, including their hierarchy, order, titles, messages, anchors, and formatting settings.
+- Added draft and published states for translated rulesets, allowing translations to be prepared privately before publication.
+- Added a customisable introduction for each language's rules page.
+- Added compound list numbering (for example, 1, 1.1, and 1.1.1) and improved ordered and unordered prefixes across deeply nested rules.
+- Improved rules-page responsiveness and indented nested categories in the category navigation panel.
+- Improved compatibility with phpBB configuration-menu and Who Is Online route API changes.
+- Improved Unicode handling for rule titles and anchors, including emoji-safe title storage and stricter anchor validation.
+- Updated missing language keys and added correct plural forms across language packs.
+- Added Portuguese language pack.
+
 ### 3.0.1 - 2024-01-18
 
 - Rules in the ACP are clickable again, fixes an issue introduced in v3.0.0..
diff --git a/composer.json b/composer.json
index c84ee29d..2af99031 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,7 @@
 	"type": "phpbb-extension",
 	"description": "An extension which allows you to create a set of rules for your phpBB forum",
 	"homepage": "https://www.phpbb.com/customise/db/extension/boardrules/",
-	"version": "3.1.0-dev",
+	"version": "3.1.0",
 	"keywords": ["phpbb", "extension", "rules"],
 	"license": "GPL-2.0-only",
 	"authors": [
diff --git a/exception/base.php b/exception/base.php
index 881532ea..40afea89 100644
--- a/exception/base.php
+++ b/exception/base.php
@@ -33,7 +33,7 @@ class base extends \Exception
 	* @param \Exception|null $previous
 	* @access public
 	*/
-	public function __construct($message = null, $code = 0, ?\Exception $previous = null)
+	public function __construct($message = null, $code = 0, \Exception $previous = null)
 	{
 		parent::__construct();