Qubes OS releases are normally supported for six months after each subsequent major or minor release. However, in light of the more demanding system requirements of Qubes 4.0, we previously announced that we were extending the support period for Qubes 3.2 to one full year after the release of Qubes 4.0. Since Qubes 4.0 was released on 2018-03-28, support for Qubes 3.2 is extended until 2019-03-28.
Therefore, we strongly urge all current Qubes 3.2 users to upgrade to Qubes 4.0 before Qubes 3.2 reaches end-of-life (EOL) on 2019-03-28. As always, the latest release is available on the downloads page.