Following some minor patches in the previous weeks, the E3 Quake Champions Patch introduces a brand new champion and new weapon, new maps including Blood Run, Custom Games and more. Check out the full Patchlog below:
Welcome to the Quake Champions Beta! We’ve made a lot of changes in this build, many of which we just revealed at the Bethesda E3 Showcase! The first big change is that beta is now open 24/7! That means you can just in and play any time you want, unless we have a maintenance window or are deploying a future patch. We’ll keep you in the loop about any planned outages.
We’ve also added a LOT of goodness. Here’s the list of other new additions that you can check out right now:

Additional Info:
Blood Run Quick Tour by Rocket Jump Ninja
Lockbox Arena Overview
BJ Blazkowicz Champion Trailer

Source: bethesda.net