Automatically regenerate CSS when updating Bricks versions

I noticed when I uploaded Bricks 1.4 RC2 to WordPress to overwrite the 1.3.7 version, it prompts with a message afterwards on the Dashboard to regenerate the CSS. I started wondering why this isn’t done automatically. If one has updated to the newer version, I’d assume it’d be a better UX to have it auto-generate the inline CSS / external CSS files generated in Bricks.