diff --git a/phpBB/develop/export_events_for_wiki.php b/phpBB/develop/export_events_for_wiki.php
index 2096e9c858..721f4f18e3 100644
--- a/phpBB/develop/export_events_for_wiki.php
+++ b/phpBB/develop/export_events_for_wiki.php
@@ -18,6 +18,7 @@ if (php_sapi_name() != 'cli')
 
 $phpEx = substr(strrchr(__FILE__, '.'), 1);
 $phpbb_root_path = __DIR__ . '/../';
+define('IN_PHPBB', true);
 
 function usage()
 {
@@ -54,9 +55,11 @@ function validate_argument_count($arguments, $count)
 validate_argument_count($argc, 1);
 
 $action = $argv[1];
-$extension = isset($argv[2]) ? $argv[2] : null;
+$extension = isset($argv[2]) && $argv[2] !== 'null' ? $argv[2] : null;
+$min_version = isset($argv[3]) ? $argv[3] : null;
 require __DIR__ . '/../phpbb/event/php_exporter.' . $phpEx;
 require __DIR__ . '/../phpbb/event/md_exporter.' . $phpEx;
+require __DIR__ . '/../includes/functions.' . $phpEx;
 require __DIR__ . '/../phpbb/event/recursive_event_filter_iterator.' . $phpEx;
 require __DIR__ . '/../phpbb/recursive_dot_prefix_filter_iterator.' . $phpEx;
 
@@ -66,7 +69,7 @@ switch ($action)
 		echo '__FORCETOC__' . "\n";
 
 	case 'php':
-		$exporter = new \phpbb\event\php_exporter($phpbb_root_path, $extension);
+		$exporter = new \phpbb\event\php_exporter($phpbb_root_path, $extension, $min_version);
 		$exporter->crawl_phpbb_directory_php();
 		echo $exporter->export_events_for_wiki();
 
diff --git a/phpBB/phpbb/event/php_exporter.php b/phpBB/phpbb/event/php_exporter.php
index 35144eeeec..0857298c07 100644
--- a/phpBB/phpbb/event/php_exporter.php
+++ b/phpBB/phpbb/event/php_exporter.php
@@ -25,6 +25,12 @@ class php_exporter
 	/** @var string phpBB Root Path */
 	protected $root_path;
 
+	/** @var string The minimum version for the events to return */
+	protected $min_version;
+
+	/** @var string The maximum version for the events to return */
+	protected $max_version;
+
 	/** @var string */
 	protected $current_file;
 
@@ -43,14 +49,18 @@ class php_exporter
 	/**
 	* @param string $phpbb_root_path
 	* @param mixed $extension	String 'vendor/ext' to filter, null for phpBB core
+	* @param string $min_version
+	* @param string $max_version
 	*/
-	public function __construct($phpbb_root_path, $extension = null)
+	public function __construct($phpbb_root_path, $extension = null, $min_version = null, $max_version = null)
 	{
 		$this->root_path = $phpbb_root_path;
 		$this->path = $phpbb_root_path;
 		$this->events = $this->file_lines = array();
 		$this->current_file = $this->current_event = '';
 		$this->current_event_line = 0;
+		$this->min_version = $min_version;
+		$this->max_version = $max_version;
 
 		$this->path = $this->root_path;
 		if ($extension)
@@ -215,6 +225,33 @@ class php_exporter
 					$since_line_num = $this->find_since();
 					$since = $this->validate_since($this->file_lines[$since_line_num]);
 
+					$changed_line_nums = $this->find_changed('changed');
+					if (empty($changed_line_nums))
+					{
+						$changed_line_nums = $this->find_changed('change');
+					}
+					$changed_versions = array();
+					if (!empty($changed_line_nums))
+					{
+						foreach ($changed_line_nums as $changed_line_num) {
+							$changed_versions[] = $this->validate_changed($this->file_lines[$changed_line_num]);
+						}
+					}
+
+					if (!$this->version_is_filtered($since))
+					{
+						$valid_version = false;
+						foreach ($changed_versions as $changed)
+						{
+							$valid_version = $valid_version || $this->version_is_filtered($changed);
+						}
+
+						if (!$valid_version)
+						{
+							continue;
+						}
+					}
+
 					// Find event description line
 					$description_line_num = $this->find_description();
 					$description = substr(trim($this->file_lines[$description_line_num]), strlen('* '));
@@ -242,6 +279,17 @@ class php_exporter
 		return $num_events_found;
 	}
 
+	/**
+	 * The version to check
+	 *
+	 * @param string $version
+	 */
+	protected function version_is_filtered($version)
+	{
+		return (!$this->min_version || phpbb_version_compare($this->min_version, $version, '<='))
+			&& (!$this->max_version || phpbb_version_compare($this->max_version, $version, '>='));
+	}
+
 	/**
 	* Find the name of the event inside the dispatch() line
 	*
@@ -448,6 +496,33 @@ class php_exporter
 		return $this->find_tag('since', array('event', 'var'));
 	}
 
+	/**
+	* Find the "@changed" Information lines
+	*
+	* @param string $tag_name Should be 'changed' or 'change'
+	* @return array Absolute line numbers
+	* @throws \LogicException
+	*/
+	public function find_changed($tag_name)
+	{
+		$lines = array();
+		$last_line = 0;
+		try
+		{
+			while ($line = $this->find_tag($tag_name, array('since'), $last_line))
+			{
+				$lines[] = $line;
+				$last_line = $line;
+			}
+		}
+		catch (\LogicException $e)
+		{
+			// Not changed? No problem!
+		}
+
+		return $lines;
+	}
+
 	/**
 	* Find the "@event" Information line
 	*
@@ -464,13 +539,14 @@ class php_exporter
 	* @param string $find_tag		Name of the tag we are trying to find
 	* @param array $disallowed_tags		List of tags that must not appear between
 	*									the tag and the actual event
+	* @param int $skip_to_line		Skip lines until this one
 	* @return int Absolute line number
 	* @throws \LogicException
 	*/
-	public function find_tag($find_tag, $disallowed_tags)
+	public function find_tag($find_tag, $disallowed_tags, $skip_to_line = 0)
 	{
-		$find_tag_line = 0;
-		$found_comment_end = false;
+		$find_tag_line = $skip_to_line ? $this->current_event_line - $skip_to_line + 1 : 0;
+		$found_comment_end = ($skip_to_line) ? true : false;
 		while (strpos(ltrim($this->file_lines[$this->current_event_line - $find_tag_line], "\t "), '* @' . $find_tag . ' ') !== 0)
 		{
 			if ($found_comment_end && ltrim($this->file_lines[$this->current_event_line - $find_tag_line], "\t") === '/**')
@@ -560,6 +636,27 @@ class php_exporter
 		return $match[1];
 	}
 
+	/**
+	* Validate "@changed" Information
+	*
+	* @param string $line
+	* @return string
+	* @throws \LogicException
+	*/
+	public function validate_changed($line)
+	{
+		$match = array();
+		$line = str_replace("\t", ' ', ltrim($line, "\t "));
+		preg_match('#^\* @change(d)? (\d+\.\d+\.\d+(?:-(?:a|b|RC|pl)\d+)?)( (?:.*))?$#', ltrim($line, "\t "), $match);
+		if (!isset($match[2]))
+		{
+			throw new \LogicException("Invalid '@changed' information for event "
+				. "'{$this->current_event}' in file '{$this->current_file}:{$this->current_event_line}'");
+		}
+
+		return $match[2];
+	}
+
 	/**
 	* Validate "@event" Information
 	*