"It is very unlikely that a security update of a stable release will remove an already installed package."
I'm not convinced by this assertion. See how many times kernel updates are mentioned in this bug report and in duplicates #347377, #374861, and #395022.
"It is very unlikely that a security update of a stable release will remove an already installed package."
I'm not convinced by this assertion. See how many times kernel updates are mentioned in this bug report and in duplicates #347377, #374861, and #395022.