.NET Core 3.1 End of Life is on 13 December 2022 - You must migrate to .NET 6.0 before January 2023
.Net Core 3.1 will reach end of life on 13 December 2022. Any service using .Net Core 3.1 after December 2022 will be at immediate security and compliance risk starting on 13 January 2023. Because of this security impact, there are no extensions or deferrals for these dates.
Required action
Services using .Net Core 3.1 must migrate, recompile, and validate to .Net 6.0 before January 2023.
For more information please see these .Net documents: