By popular request, Skype is bringing back the “Away” status that used to be available in the Skype classic app before it was deprecated in November. The “Away” status is currently available in Skype version 188.8.131.52 for Skype Insiders, and Microsoft also brought back the yellow icon with the timer.
It’s important to note that the “Away” status is different from “Recently Active,” a new status which will be automatically set when you were active less than an hour ago. Microsoft says that will soon allow users to choose the duration after which they are marked Recently Active in Skype.
For now, the "Recently Active" and "Away" status will only be visible for Skype Insiders running the build 184.108.40.206. If you're running the October 2018 Update, you can get this new version by opening the pre-installed Skype Microsoft Store app, go to Settings > Help and Feedback and then opt in to the Skype App Preview program. For those of you on older versions of Windows, macOS or Linux, you can download the Skype Preview app on this page.