Windows 10 KB5078885 ESU out with Secure Boot 2023, replacing expiring Secure Boot certificates from 2011. But it's a staged roll out.

Update KB5075039, which is for Windows 10 ESU and Windows 10 Enterprise LTSC 2021, fixes a bug in the Windows Recovery ...

Last fall, Microsoft announced that individuals who wanted to keep using Windows 10 past its official end-of-support date could do so by opting into the company’s Extended Security Update (ESU) ...