3 files changed, 31 insertions, 9 deletions
diff --git a/phpBB/includes/acp/acp_main.php b/phpBB/includes/acp/acp_main.php
index 60cebe3c08..68445d814f 100644
--- a/phpBB/includes/acp/acp_main.php
+++ b/phpBB/includes/acp/acp_main.php
@@ -415,11 +415,8 @@ class acp_main
 		{
 			$latest_version_info = explode("\n", $latest_version_info);
 
-			$latest_version = str_replace('rc', 'RC', strtolower(trim($latest_version_info[0])));
-			$current_version = str_replace('rc', 'RC', strtolower($config['version']));
-
 			$template->assign_vars(array(
-				'S_VERSION_UP_TO_DATE'	=> version_compare($current_version, $latest_version, '<') ? false : true,
+				'S_VERSION_UP_TO_DATE'	=> phpbb_version_compare(trim($latest_version_info[0]), $config['version'], '<='),
 			));
 		}
 
diff --git a/phpBB/includes/acp/acp_update.php b/phpBB/includes/acp/acp_update.php
index b0ce8f1084..931fa53165 100644
--- a/phpBB/includes/acp/acp_update.php
+++ b/phpBB/includes/acp/acp_update.php
@@ -69,12 +69,9 @@ class acp_update
 
 		$current_version = (!empty($version_update_from)) ? $version_update_from : $config['version'];
 
-		$up_to_date_automatic = (version_compare(str_replace('rc', 'RC', strtolower($current_version)), str_replace('rc', 'RC', strtolower($latest_version)), '<')) ? false : true;
-		$up_to_date = (version_compare(str_replace('rc', 'RC', strtolower($config['version'])), str_replace('rc', 'RC', strtolower($latest_version)), '<')) ? false : true;
-
 		$template->assign_vars(array(
-			'S_UP_TO_DATE'		=> $up_to_date,
-			'S_UP_TO_DATE_AUTO'	=> $up_to_date_automatic,
+			'S_UP_TO_DATE'		=> phpbb_version_compare($latest_version, $config['version'], '<='),
+			'S_UP_TO_DATE_AUTO'	=> phpbb_version_compare($latest_version, $current_version, '<='),
 			'S_VERSION_CHECK'	=> true,
 			'U_ACTION'			=> $this->u_action,
 			'U_VERSIONCHECK_FORCE' => append_sid($this->u_action . '&amp;versioncheck_force=1'),
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 86eab4666f..83e56caedc 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -620,6 +620,34 @@ function phpbb_email_hash($email)
 }
 
 /**
+* Wrapper for version_compare() that allows using uppercase A and B
+* for alpha and beta releases.
+*
+* See http://www.php.net/manual/en/function.version-compare.php
+*
+* @param string $version1		First version number
+* @param string $version2		Second version number
+* @param string $operator		Comparison operator (optional)
+*
+* @return mixed					Integer (-1, 0, 1) if comparison operator is specified.
+*								Boolean (true, false) otherwise.
+*/
+function phpbb_version_compare($version1, $version2, $operator = null)
+{
+	$version1 = strtolower($version1);
+	$version2 = strtolower($version2);
+
+	if (is_null($operator))
+	{
+		return version_compare($version1, $version2);
+	}
+	else
+	{
+		return version_compare($version1, $version2, $operator);
+	}
+}
+
+/**
 * Global function for chmodding directories and files for internal use
 *
 * This function determines owner and group whom the file belongs to and user and group of PHP and then set safest possible file permissions.