Windows 10 will have new features updates released to the
twice per year, around March and September.
Each feature update will be
serviced for 18 months from the date of release
Office 365 ProPlus is doing the same thing.
If you understand those points, then you understand the terminology – the focus then should be on the process that you need to go through, the tools that are available to help, etc. For that, start with the
documentation, as well as the
Microsoft Mechanics video on YouTube
Shortest blog ever (and now fixed to be grammatically correct)