@null null
That sounds like a specific issue that you should have support investigate
MarklinMaxi
Thanks for your question. Lifecycles differ slightly from releases depending if they are LTSC or not but for the builds you are referencing the following is true:
Windows 10 IoT Enterprise build 1809 LTSC has a 10 year lifecycle beginning in 2018 and ending in 2028
Windows 10 IoT Enterprise 2021 LTSC has a 10 year lifecycle beginning in 2021 and ending in 2031 which is the upcoming release.
In contrast the upcoming Windows 11 IoT Enterprise release has only a 36 lifecycle (its a non LTSC release) giving it support till 2024/2025.
In this situation both 1809 and the upcoming 2021 LTSC outlast the upcoming Windows 11 IoT release. Hope this helps.