umbrelOS version 0.5.4 - end of security support?

Hello Umbrel team,

When do we expect to see the end of life or end of security maintenance and support for umbrelOS version 0.5.4?

I am asking specifically on DIY Debian and Ubuntu installations? Although will be helpful to know the schedule of the other software and hardware as well.

Thank you in advance for your advise.

Sincerely,