I can’t upgrade, due to conflicts.
I have found these conflicts:
wxwidgets-gtk3 conflicts with wxgtk3.
wxwidgets-common conficts with wxgtk-common.
But there might be more conflicts.
I can’t replace one with the other, because of other packages depends on them.
How can this be solved ?
And, in general, why doesn’t Pamac/pacman skip the conflicts and upgrade everything else?
Remove whatever depends on it. And next time search the forum first. This has to be 30th post about wxwidgets + there was an announcement about it. Read that too before you update.
Then you might need to remove more things.
Because things change, even more so in a rolling distro. Stop updating and installing new packages and voila, no more conflicts, ever.