Ubuntu 14.04.2 LTS
http://www.ubuntu.com/download/desktop/



These release notes for Ubuntu 14.04.2 (Trusty Tahr) provide an overview of the release and document the known issues with Ubuntu 14.04.2 and its flavors. For details of the changes applied since 14.04.1, please see the 14.04.2 change summary. The release notes for 14.04 and 14.04.1 are available as well.

Support lifespan

Ubuntu 14.04 LTS will be supported for 5 years for Ubuntu Desktop, Ubuntu Server, Ubuntu Core, Kubuntu, Edubuntu, and Ubuntu Kylin. All other flavours will be supported for 3 years.

Official flavour release notes

Find the links to release notes for official flavors here.