Steve Langasek has announced the supported life of Ubuntu 17.04 is drawing to a close. "Ubuntu announced its 17.04 (Zesty Zapus) release almost 9 months ago, on April 13, 2017. As a non-LTS release, 17.04 has a 9-month support cycle and, as such, will reach end of life on Saturday, January 13th. At that time, Ubuntu Security Notices will no longer include information or updated packages for Ubuntu 17.04. The supported upgrade path from Ubuntu 17.04 is via Ubuntu 17.10." Ubuntu 17.04 users are advised to upgrade to version 17.10. Instructions for performing the upgrade can be found in the Ubuntu Community Help Wiki.