There are varying windows of time in which users are likely to install an upgrade when it is released by the vendor. Our researchers looked at the installations of software on the endpoints used by our customers. Their software fell into three categories:

• New versions: The endpoint ran the newest available version of the software
• Recent versions: The endpoint ran one of the previous three versions of the software, but not the newest
• Old versions: The endpoint ran software that was more than three versions behind the current release

As an example, if a software vendor released version 28 on January 1, 2017, version 28 would be new; version 26 would be recent; and version 23 would be old. (The figures on the next page contain callouts of the weekly time periods where one or more versions of the software were released.)

High