We decided to hold off the features build until tomorrow (Wednesday) so we could fix some relatively smaller issues with those features. Those changes were completed on Monday; we ran and passed the functional tests for the features today; and we are running load tests on them overnight. Assuming no issues are found, we will release them on Wednesday, and I will blog more details.
The feature fixes are described in Performance Fixes and Feature Status.
Meanwhile, we continue to investigate the periodic slowdowns that cause us to restart the communities application and that cause you to see slow page load times and errors on the rich text editor. We recognize that the restarts are causing disruptions, and we are 100% focused on improving the system stability.