Be aware that when I upgraded to the latest version of Jetpack all my blog categories got wiped and the psot was reset to uncategorized.
This happen an 4 of my sites and happened when I upgraded to Jetpack
You may want to ensure you hafve a FULL backup before upgrading. I'm not sure if it's a confilct with another plugin or not. But i'm now having to re-establish all my categories and re-assigning all my blog posts. Not what i had planned for a Sunday really.