Ubuntu Studio 19.10 (Eoan Ermine) was released October 17, 2019 and will reach End of Life on Friday, July 17, 2020. This means that after that date there will be no further security updates or bugfixes released. We highly recommend that you update to 20.04 LTS immediately if you are still running 19.10.
After July 17th, the only supported release of Ubuntu Studio will be 20.04 LTS. All other releases of Ubuntu Studio will be considered unsupported, and will no longer receive any further updates from the Ubuntu Studio team.