The Update Manager module allows administrators to perform updates directly from the <a href=":update-page">Update page</a>. It lists all available updates, and you can confirm whether you want to download them. If you don't have sufficient access rights to your web server, you could be prompted for your FTP/SSH password. Afterwards the files are transferred into your site installation, overwriting your old files. Direct links to the Update page are also displayed on the <a href=":modules_page">Extend page</a> and the <a href=":themes_page">Appearance page</a>.