Craft 3 Redactor Link no longer has target option The option for opening a link in the Redactor WYSIWYG no longer includes a field for opening it in a new tab? I haven't been able to find any docs that indicate any options for the Redactor config file to add this back in?
Add the linkNewTab config option to the Redactor config you're using:
So, that would become something like:

{
    "buttons": [...],
    "plugins": [...],
    "linkNewTab": true
}