The latest challenge is Endeavour OS. This is a two week challenge between August 3 and August 17.
Be aware that this is a new distribution which is philosophical successor to the now defunct Antergos project. Given that, it will be very helpful for us as end users to provide feedback to their team.
Feel free to discuss the challenge here. I have merged the previous discussion thread into this one so we have a single place for discussion. If you have any issues installing or otherwise please post so we can discuss and learn as a group. If you prefer real time interaction then jump on Telegram or Discord instead.