As of today, April 25, 2019, Ubuntu Studio 16.04 LTS has reached the end of its support cycle.

We strongly urge all users of 16.04 to upgrade to Ubuntu Studio 18.04 and add the Ubuntu Studio Backports PPA for support through April 2021. Our next LTS release, 20.04, is expected in April 2020.

Ubuntu Studio 16.04 LTS will no longer receive community support from this point forward. Packages will continue to receive only security updates from Ubuntu until 2021.