From Wild Apricot:

"This is a reminder your website and membership database will be migrated to Version 5 of Wild Apricot on 07 Jun 2014.

The data migration process will start approximately at 01:00 (UTC-08:00) Pacific Time (US & Canada). There will be a downtime of several hours."

I doubt if many of you will be trying to access the system at 1:00 in the morning. It should be completed, hopefully without incident, by the time we get up on Saturday morning.