The Xbox 360 spring system update will begin rolling out this week, Microsoft's Major Nelson announced.
"If you got an Xbox 360 System Update: Spring update rolling out to a few this week – everyone else next week," he said.
Don't expect to see anything noticeable right away. Nelson added that "the system update contains behind the scenes improvements & prep for future enhancements."
Although a vague description of its contents, it's probably safe to presume the update has something to do with the recently revealed SmartGlass and/or the sports entertainment partnerships announced at E3 last week.