Warn about unapplied changes when starting a site

I changed the PHP version associated with my site, but didn’t hit the Apply button (didn’t even see it). Then, when I started the site, it used the old version without any warning. Local should warn me that I have unsaved configuration changes before starting the site.

In my case, I changed the PHP version, because the version that was configured is no longer bundled:

DownloadPHP