With Microsoft soon dropping support for Windows Vista, UbiSoft is following suit. Players currently running uPlay on Vista will still be able to play previously available games with the current version, but should not expect updates in the future.
Windows Vista enjoys a reputation for being one of the 'odd numbered' failures among Microsoft's operating systems. Vista support wil be by Microsoft on 11 April 2017. This means that the operating system won't be receiving any further security updates and that paid or free customer support for the software will no longer be available to its users.
While most gamers won't be shedding any tears over this development, and the culture as a whole has usually skipped Vista altogether, heading to Windows 7 straight from XP, UbiSoft dropping support for the OS for uPlay is something you should be aware of, if you happen to be among the 3 people running a gaming rig with Vista.
Most PC gamers don't have kind words for uPlay either, as a short trip to reddit will easily show. Ubisoft's answer to Steam is seen as an example of corporate strong-arming of gamers. Its functionality is often described as erratic, causing various amounts and types of grief among players, in addition to making uPlay seem to be more of a service to the publisher, rather than their customers.
Vista users can expect any security or functionality updates for uPlay on the ageing operating system. All games available through the service at this time will still be playable but functionality will more likely than not become impaired over time, so an OS upgrade is strongly recommended for a smooth gaming experience in the future.