I’ll manage long-term release future notifications via kernel.org, reading the manjaro announcement forum and reviewing the “List of changes can be found here” link which appears before the survey.
It is better to go with 6.18 instead of 6.6. There have been some important security-related changes to pamac, pam, et al, which were not implemented yet in 6.6, and which require a special approach in kernels older than 6.12.
You cannot remove a running kernel, so you’ll have to install the new kernel first and boot into it before you can uninstall the old one.
I did thus why I was removing linux510. I might be a bit behind I do look forward to when the list of changes appear on “\gitlab.manjaro.org/-/snippets” again.