The standing bid list (where you can see what everyone has bid for) is updated quarterly and was last updated last week.

The global seniority list is updated at least once a month, usually the same time as they update the rosters. I moved up 10 numbers from April to May so attrition picked up a little. They don't always put the new hires on right away even though they update the list. Since they're running monthly standing bid awards, I think they wait a month or two before putting new hires on, so they can see where the vacancies are and put the new hires in the holes. The EJET FOs usually show up on the list before the CRJ FOs, because there's only one place for them to go.