Upgrading
Upgrading is really easy! Unpack the new version, move the var/ directory of the old version to the new version's folder and then either browse to: http://your-site.com/gallery3/index.php/upgrader or at a shell prompt: php index.php upgrade For more detailed upgrade instructions, please refer to the Gallery 3 User Guide
解压新版本，然后将旧版本的var文档移动到新版本下 然后执行升级即可，特别注意备份theme下的主题文件
Edit index.php to allow Windows install
- Find and delete:
// Gallery is not supported on Windows. if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { exit("Gallery is not supported on Windows (PHP reports that you're using: " . PHP_OS . ")"); }
http://codex.galleryproject.org/Gallery3:Installation_on_Windows_Server_2008_and_IIS7