We're going to be pushing up a new version of one our PvP backend servers around 4PM PDT. This change is to decrease the frequency of "stuck" matches. Especially for matches running during game updates. Ironically, when we push this out some matches will likely get stuck. We should have people unstuck within 30 minutes or so, if it happens.
Along with this change, we're going to be doing some experiments with the unranked matchmaker. The change increases the time the matchmaker waits before allowing 2 people of largely differing skill ratings to be placed within the same match. However, average time in queue will likely go up dramatically, especially if you're at high or low end of skill rating. We will running this change to gather data and will likely switch it back within a day or so. However, if queue times go into plaid levels, we could switch this off sooner.