August 28-29 incident:
Some orders and payments from around 28 August are still being restored — read the incident report, or contact support if something of yours is missing. You will be asked to choose a new password at your next sign-in.
I have never done any A/B testing before and once again it comes up in a post that Cristian wrote about tips and tricks for a new online store.
Its been on my to do list and I always mean to get to it but I never do.....