According
It is also believed that Android 8.1 will be accompanied by a bump in the SDK version which means that Android 8.1 will include a variety of changes in API.
platformBuildVersionCode=”27? platformBuildVersionName=”8.1.0?
The previous version of Android, 8.0 was based on version 26 of SDK and the latest version of Android (8.1) could be based on unreleased SDK version 27 with which a few of Android developers are already working on.
The Android 8.1 will still be called the Oreo.