Jetpack by WordPress.com was updated to version 2.9.1, from version 2.9. Changelog:
- Bugfix: After the Deadline: Fix a Javascript glitch that could prevent publishing of posts.
- Bugfix: SSO: Disable the implementation of an option that had been removed before release. This would have only been an issue if a site administrator had enabled the module during an early beta of 2.9.