Jetpack Security Update

Jetpack 4.0.3 contains a critical security update, and you should update all the sites you manage as soon as possible. You can update through your wordpress dashboard, or download Jetpack manually here.

More information about this issue can be found on the Jetpack website.

Link: https://jetpack.com/2016/05/27/jetpack-4-0-3-critical-security-update/