A family of Microsoft word processing software products for creating web, email, and print documents.
To see the Office version, follow the steps in What version of Office am I using?
The 1711.8730.2127 version was released on December 12, 2017. There have been eight updates since then, and the current version is 1802.9029.2167. The list is at this page.
Updates should be sent to you automatically, but maybe they haven't arrived. To force an update, go to File > Account, click the Update Options button, and click Update Now in the menu.
By the way, "Click-to-Run" is a software delivery method that Microsoft uses. Nearly all Office 365 subscription software is installed that way, rather than from a CD/DVD disk.