http://www.omgubuntu.co.uk/2012/10/ubuntu-11-04-support-ends-today
October 28th marked the day that Ubuntu 11.04, the first release to introduce Unity, will no longer recieve support from Canonical. In return, there will be no more package updates for it and its deriatives (like Trisquel) from now on should upgrade to a later version soon. In return, this means that Trisquel users on 5.0 should upgrade to 5.5 until 6 comes out. Of course Trisquel 4 users are in the clear as that operating system is still supported for another year or so.
