UPDATE: The 7/7/2009 release was completed at 11 am EST on 7/7/2009.
UPDATE: We are still deploying the current release, and expect it to continue until 11am EST.
The good news is that we have not put any sites into read-only mode and don't expect to; we are aiming to make this release unnoticeable by your community members.
This release includes some behind the scenes performance enhancements and tweaks to the Widget Studio, which are outlined in the previous KickDeveloper article.