More stability and speedup as well as some new features such as Internationalized Domain Name (IDNA) support, support for shared/global IMAP folders, and support for SMTP Delivery Status Notifications. Plus some minor changes to the message list UI and many improvements.
New features like threaded message listing and contact groups support as well as many little improvements that make email reading with Roundcube an even better experience.
This is a service update to the 0.3-stable release with mostly bugfixes and improved file uploading when composing new mail messages. It's recommended to replace all existing Roundcube installations with this version.
