Google will disallow sign-ins to user accounts running Android 2.3.7 Gingerbread or older starting September 27.

A Google support document released last Tuesday, July 27, said users may get “username or password errors when you try to use Google products and services like Gmail, YouTube, and Maps” if they try signing on to these older versions of Android come September 27.

The disallowance of sign-ins on the older versions of Android will likely affect users who’ve held out and maintained some pretty old tech.

Google advised updating to at least Android 3.0 Honeycomb – if at all possible – on those devices, though it must be noted that Android 2.3.7 is about 10 years old at this point.

Users can check what version of Android they have by opening their settings, going to System, then looking for System Updates, and confirming the Android version and security patch level at that instance. They can also check for operating system updates using that same interface. – Rappler.com