Ok, so I am testing the beta and this is what I've noticed so far.
The relative timestamp after each entry in the front end page has consistent functionality now. Unfortunately it appears to be using UTC time instead of my local specified wordpress time for both the front end and the all users page.
I looked in the database at the wp_activity table and the 'act_date' column is now storing dates based on UTC timezone. Before it was using the correct local date in 'act_date' for all 'act_types' except for 'post_add'.
Let me know if that is not clear.
The blacklisting feature works great and now no longer displays in the frontend.
I'll update this if I notice anything else.