There is a lot going on in technology year.
You could probably say that any year, but this year is different because we are facing the end of support for Windows XP. Microsoft introduced XP on the last day of 2001, almost 12 years ago. 12 years is an eternity in technology and even though Window XP was the most popular operating system of all time, the underlying acrchitecture is now ancient. Microsoft has released 3 major versions of Windows since XP.