diff --git a/administrator/components/com_patchtester/patchtester.xml b/administrator/components/com_patchtester/patchtester.xml
index fc27eac..8b0347d 100644
--- a/administrator/components/com_patchtester/patchtester.xml
+++ b/administrator/components/com_patchtester/patchtester.xml
@@ -7,7 +7,7 @@
 	<license>GNU General Public License version 2 or later</license>
 	<authorEmail>admin@joomla.org</authorEmail>
 	<authorUrl>https://www.joomla.org</authorUrl>
-	<version>3.0.0.dev</version>
+	<version>3.0.0-dev</version>
 	<description>COM_PATCHTESTER_XML_DESCRIPTION</description>
 	<scriptfile>script.php</scriptfile>
 	<install>
diff --git a/build/patchtester/release.php b/build/patchtester/release.php
new file mode 100755
index 0000000..59d1720
--- /dev/null
+++ b/build/patchtester/release.php
@@ -0,0 +1,122 @@
+#!/usr/bin/env php
+<?php
+/**
+ * Script used to prepare a patchtester release
+ *
+ * This script will:
+ *
+ * - Replace `__DEPLOY_VERSION__` markers with the version
+ * - Update the version number in the component manifest
+ * - Update the version in the update server manifest
+ *
+ * Usage: php build/patchtester/release.php -v <version> --exclude-manifest
+ *
+ * Examples:
+ * - php build/patchtester/release.php -v 3.0.0
+ * - php build/patchtester/release.php -v 3.0.1-dev --exclude-manifest
+ *
+ * @copyright  Copyright (C) 2011 - 2012 Ian MacLennan, Copyright (C) 2013 - 2016 Open Source Matters, Inc. All rights reserved.
+ * @license    GNU General Public License version 2 or later
+ */
+
+// Constants.
+const PHP_TAB = "\t";
+
+// Functions.
+function usage($command)
+{
+	echo PHP_EOL;
+	echo 'Usage: php ' . $command . ' [options]' . PHP_EOL;
+	echo PHP_TAB . '[options]:'.PHP_EOL;
+	echo PHP_TAB . PHP_TAB . '-v <version>:' . PHP_TAB . 'Version (ex: 3.0.0, 3.0.1-dev)' . PHP_EOL;
+	echo PHP_TAB . PHP_TAB . '--exclude-manifest: Exclude updating the update server manifest';
+	echo PHP_EOL;
+}
+
+$manifestFile     = '/administrator/components/com_patchtester/patchtester.xml';
+$updateServerFile = '/manifest.xml';
+
+// Check arguments (exit if incorrect cli arguments).
+$opts = getopt('v:', array('exclude-manifest'));
+
+if (empty($opts['v']))
+{
+	usage($argv[0]);
+	die();
+}
+
+// Check version string (exit if not correct).
+$versionParts = explode('-', $opts['v']);
+
+if (!preg_match('#^[0-9]+\.[0-9]+\.[0-9]+$#', $versionParts[0]))
+{
+	usage($argv[0]);
+	die();
+}
+
+if (isset($versionParts[1]) && !preg_match('#(dev|alpha|beta|rc)[0-9]*#', $versionParts[1]))
+{
+	usage($argv[0]);
+	die();
+}
+
+if (isset($versionParts[2]) && $versionParts[2] !== 'dev')
+{
+	usage($argv[0]);
+	die();
+}
+
+// Make sure we use the correct language and timezone.
+setlocale(LC_ALL, 'en_GB');
+date_default_timezone_set('Europe/London');
+
+// Make sure file and folder permissions are set correctly.
+umask(022);
+
+// Set version properties.
+$versionSubParts = explode('.', $versionParts[0]);
+
+$version = array(
+	'main'      => $versionSubParts[0] . '.' . $versionSubParts[1],
+	'release'   => $versionSubParts[0] . '.' . $versionSubParts[1] . '.' . $versionSubParts[2],
+	'dev_devel' => $versionSubParts[2] . (!empty($versionParts[1]) ? '-' . $versionParts[1] : '') . (!empty($versionParts[2]) ? '-' . $versionParts[2] : ''),
+	'credate'   => date('d-F-Y'),
+);
+
+// Prints version information.
+echo PHP_EOL;
+echo 'Version data:'. PHP_EOL;
+echo '- Main:' . PHP_TAB . PHP_TAB . PHP_TAB . $version['main'] . PHP_EOL;
+echo '- Release:' . PHP_TAB . PHP_TAB . $version['release'] . PHP_EOL;
+echo '- Full:'  . PHP_TAB . PHP_TAB . PHP_TAB . $version['main'] . '.' . $version['dev_devel'] . PHP_EOL;
+echo '- Dev Level:' . PHP_TAB . PHP_TAB . $version['dev_devel'] . PHP_EOL;
+echo '- Creation date:' . PHP_TAB . $version['credate'] . PHP_EOL;
+echo PHP_EOL;
+
+$rootPath = dirname(dirname(__DIR__));
+
+// Updates the version and creation date in the component manifest file.
+if (file_exists($rootPath . $manifestFile))
+{
+	$fileContents = file_get_contents($rootPath . $manifestFile);
+	$fileContents = preg_replace('#<version>[^<]*</version>#', '<version>' . $version['main'] . '.' . $version['dev_devel'] . '</version>', $fileContents);
+	$fileContents = preg_replace('#<creationDate>[^<]*</creationDate>#', '<creationDate>' . $version['credate'] . '</creationDate>', $fileContents);
+	file_put_contents($rootPath . $manifestFile, $fileContents);
+}
+
+// Replaces the `__DEPLOY_VERSION__` marker with the "release" version number
+system('cd ' . $rootPath . ' && find administrator -name "*.php" -type f -exec sed -i "" "s/__DEPLOY_VERSION__/' . $version['release'] . '/g" "{}" \;');
+
+// If not instructed to exclude it, update the update server's manifest
+if (!isset($opts['exclude-manifest']))
+{
+	if (file_exists($rootPath . $updateServerFile))
+	{
+		$fileContents = file_get_contents($rootPath . $updateServerFile);
+		$fileContents = preg_replace('#<infourl title="Patch Tester Component">[^<]*</infourl>#', '<infourl title="Patch Tester Component">https://github.com/joomla-extensions/patchtester/releases/tag/' . $version['release'] . '</infourl>', $fileContents);
+		$fileContents = preg_replace('#<downloadurl type="full" format="zip">[^<]*</downloadurl>#', '<downloadurl type="full" format="zip">https://github.com/joomla-extensions/patchtester/releases/download/' . $version['release'] . '/com_patchtester.zip</downloadurl>', $fileContents);
+		file_put_contents($rootPath . $updateServerFile, $fileContents);
+	}
+}
+
+echo 'Version bump complete!' . PHP_EOL;