It has been more than five years since we said goodbye to the Android Market and hello to Google Play. You may have long since adjusted to the change, but there’s been a version of the Android Market out there all this time. Google’s putting an end to that soon, though. On June 30th 2017, the Android Market client on Android 2.1 and earlier will stop working.
The original Google Play rollout in 2012 included Android 2.2 and later.
[What year is it?!] Google is ending support for the Android Market on Android 2.1 and earlier was written by the awesome team at Android Police.