We're excited to add PHP 5.5 to our hosting offering, as it will allow our clients to develop their sites with the newest features available in PHP. This latest release has been a stable branch from the PHP developers for some time, and most modern software will already be compatible with it. We'd recommend that you test all of your applications with it, as in the future we will gradually be removing older versions that are no longer supported by PHP's development team. We posted previously about the ability to change the PHP version you use with your hosting account, but remember that you can do this on a per directory basis too! This means that you can try out PHP 5.5 in a test location without affecting your main site or live code with just a few clicks. To do this, simply use the "PHP Version Manager" in your cPanel interface. Choose the directory you wish (or choose public_html for your entire account), and then select the version you wish:
If you have any questions regarding this deployment, please don't hesitate to get in touch via our helpdesk!