Microsoft will launch its next version of Office for Windows in the second half of 2015, according to an online report.

ZDNet blogger Mary Jo Foley first reported on comments made by Julia White, general manager of marketing for Office and Office 365, at Microsoft's Tech Ed Europe conference in Barcelona.

According to Foley, White said that the next version of Office on Windows would launch in the last half of next year, a broad timetable that was different from previous speculation, which had focused on the first half of 2015, perhaps as early as April.

During the end of a guest spot Tuesday on Channel 9, Microsoft's online television channel, White did not specify the second half of the year, saying only "later in 2015." But she did mention that the next version of Office would go through Microsoft's typical testing process, including TAP (Technology Adoption Program) and a beta, with the latter presumably available to the general public.

TAP builds are pre-beta, and restricted to an invite-only group that's usually composed of Microsoft's larger corporate customers.

If Microsoft makes its target of the second half of next year, the upgrade would be on the same schedule as the last several editions, which have been released about two-and-a-half-years apart. Office 2013, for example, reached what Microsoft calls "general availability" in January 2013, while Office 2010 and Office 2007 made that milestone in June 2010 and January 2007, respectively.

The next office, code named Office 16, would carry the official label of Office 2016 if Microsoft follows convention.