<p dir="auto">So I downloaded the new RC2 from the customize section, very excited to try the new grid with the col-xs and col-md on it. I have been pulling my hair why it doesn't work. So I searched the css file with col-xs and it turns out it doesn't exist. :(</p>
<p dir="auto">Please correct me if it is just me.</p>
<p dir="auto">When using the customizer, the column classes appear to be the ones from RC1. Not sure if anything else wasn't updated, as this was simply the most noticeable omission.</p>