Microsoft has confirmed that the mainstream rollout of Windows 8.1 will kick off on 24 June.
The Redmond-based company revealed the news via its product support website, and has also confirmed that the incoming version of its mobile operating system will be available on all Windows Phone 8 handsets.
"Microsoft will make updates available for the Operating System, including security updates, for a minimum of 36 months after the lifecycle start date," the company said. "These updates will be incremental, with each update built on the update that preceded it. Customers need to install each update in order to remain supported.
"The distribution of these incremental updates may be controlled by the mobile operator or the phone manufacturer from which you purchased your phone, and installation will require that your phone have any prior updates. Update availability will also vary by country, region, and hardware capabilities."
Mainstream support for Windows Phone 8.1 is set to end on 11 July 2017.
Read more: Joe Belfiore teases Windows Phone 8.1 at MWC
Back in February, Microsoft's Joe Belfiore revealed that the new version of the mobile operating system will aim to attract the enterprise, expand the ecosystem and lower overall device price-points.
Windows Phone 8 has enjoyed limited success in the market so far, due to the likes of Android and iOS, but Microsoft has marked this year as the time to really kick on. If 2013 was the year where Microsoft "ate its vegetables," surely it's time to be getting back on the meat.