If you want to add a newer package to a Debian install than you can find in the default repositories you have a couple of options, either update to whole Debian install to an unstable or testing release, install from source or add a PPA repository so you can manage the install with “apt”. The script here will allow you to add a Ubuntu PPA to your Debian install. N.B Debian intentionally runs stable/older versions of code to insure each release is as stable as possible. Pissing all over that by adding Ubuntu PPAs might not always lead to the most stable install so check with a testing box first. This is useful for situations though when you’re running a newer piece or software which is updated often and want to keep the updates as smooth as possible.
Source: How to add a PPA in Debian