installing 16.04 LTS beta - is apt-get enough to get final?

I'm looking to install Ubuntu on my new laptop and an LTS kind of guy. So 16.04 looks like the version for me, since I want as long a window as possible before I have to upgrade versions.

I'm traveling indefinitely on limited inteet access, and as it happens it would be a great time for me to download 16.04 over the next couple of days.

The downside, of course, is that 16.04 is not out. What I'm curious about is if I grab whatever is out now for 16.04, eg final beta, will a simple apt-get upgrade bring me an equivalent install to installing the final .ISO once it is out - or do I need a re-install?