After updating to kernel version 6.8.10, the system no longer boots. Agree some investigation, I have found that it is due to a kernel panic due to a missing dependency libsystemd-core. All works well with kernel version 6.8.9
Any advice on how to fix it or solutions are welcome.
For me it only reinstalled 6.8.10 packages. It should install the version specific to the release, so in this case 6.8.10 for f40. Fedora kernel releases are at Overview - rpms/kernel - src.fedoraproject.org and the table lists 6.8.10 as for F40
Glad it worked for you. Just a note on my past experiences with kernel panics on various systems, they were invariably caused due to a corrupt update in some fashion, and re-applying the update normally fixes it. Can you mark the solution so others have a solved question/answer?