- What happens if package P (already installed on the user's system)
starts recommending package Q (not installed on the user's system)? Will Q get auto-installed together with P's update, or not? I believe it's important to keep auto-installation enabled for *new* weak relationships.
New weak dependencies of package P are installed. Installed P-1-1.noarch (no recommends) Available P-1-2.noarch (recommends ddd) will install ddd on upgrade if possible.
- Similarly to above (perhaps exactly the same case), what happens when
package Q (not installed) starts supplementing package P (installed), will it get auto-installed or not?
No, Q will be not installed. With supplements it is difficult to known when it appears, because that information is not on RPMDB.