Last week, Microsoft provided a few more details about the upcoming Windows 10 release of its operating system, and early indications are that new versions of the operating system will now be called branches, and will come out more frequently than the previous two-to-five year release cycle.

However, how often Microsoft will release new branches and how long it will support old ones is still unclear.

"Nobody knows how long these branches will last," said Chris Goettl, product manager at Shavlik Technologies, which focuses on patch management.

A Guy