Canonical, the parent company of Ubuntu, offers long-term support of two years for one release in four; the next LTS release will be 14.04. Earlier, LTS releases were supported for three years.
The company has also decided to give up the idea of rolling releases which it had floated earlier this year. The current six-monthly release schedule will be adhered to.
The 13.04 release, also known as Raring Ringtail, offers the new Friends service which can be employed to consolidate all social networking accounts using Ubuntu Online Accounts.
The next release of Ubuntu, due out in October, will be known as Saucy Salamander.