The phrase "advance upgrades" is correct and usable in written English.
It can be used when referring to improvements or enhancements that are made ahead of time or in a proactive manner.
Example: "The company plans to implement advance upgrades to the software to improve user experience before the official launch."
Alternatives: "preemptive upgrades" or "proactive enhancements".
A tornado warning was issued 23 minutes in advance, then upgraded to an extremely rare and desperate "tornado emergency" 10 minutes later.
By contrast, he added, "today's technology advances and upgrades are so fast that a device you buy today can become virtually obsolete in a matter of months, so there is no real time to fall in love with it the way you could in those golden years of video game infancy".
If the stock continues to advance, an upgrade or two isn't out of the question.
In June, Nintendo will unveil Game Boy Advance, an upgraded portable game player, and in May the company will push a new console called GameCube to take on the consoles from Sony and Microsoft.
If AT&T hadn't advanced the upgrade eligibility time (in some cases by as much as six months), it would have been much more expensive for many of them to upgrade from the iPhone 3GS to the iPhone 4 — and many likely wouldn't have.
It pioneered the use of new materials, and it stayed abreast of critical technology advances through periodic upgrades.
Travel must now be approved in advance, with no upgraded fares.
As you advance in level, upgrade your stats accordingly, keeping in mind your role and play-style.
Startups gearing up for the SXSW are shining up their apps and hoping to Wow the crowds of iPhone-toting hipsters by releasing major upgrades in advance of the Austin conference.
So to avoid surprises and absorb the inevitable pain you'll experience, you'll want to plan out your upgrades in advance, have them done during your company's least active times and upgrade in phases, starting with your least critical devices.
