@blah170blah nothing is going on yet! lol. 47 this Saturday. Not sure about Monday - but we are looking at splitting into two groups for Monday BR - so that June testers can start later tests, and October testers can* keep slugging through older tests.
GENERALLY, you want to work your way from older to newer. However, that being said it is a good idea to mix in some newer ones far enough before test day so that you can begin to familiarize yourself with the subtle differences.