Even as handset OEMs are upgrading their smartphones to Android 5.0 Lollipop as well as the recently announced Android 5.1 Lollipop, an incremental update dubbed Android 5.1.1 has been spotted in the Android SDK Manager.

Google had released Android 5.0 Lollipop in November 2014 with a full revamp of the UI and various new features. But a number of bugs soon appeared due to the update, particularly a "memory leak bug" causing apps to freeze, crash and reboot, demanding the company's attention.

Last month, Google announced the release of Android 5.1 Lollipop with some important features, such as support for multiple SIM cards on devices with multiple slots and HD calling between compatible devices running Android 5.1 Lollipop. The software update also enhances device protection by locking the phone until the owner signs in with his or her Google account even in the case of a factory reset. Despite all its features, the Android 5.1 Lollipop update failed to resolve the memory leak bug in Android 5.0 Lollipop.

Now, there are reports of Android 5.1.1 (API 22) being already in the works, as a reference to the new build has been spotted in the Android SDK manager that is used by Android developers to manage apps. A new revision to the Platform SDK with a product description states 'Android SDK Platform 5.1.1', suggesting that Google has finalized the code and is either running final tests for the update or prepping for a release.

With Android 5.1.1 being spotted in the Android SDK manager, the source code is expected to soon come on Android Open Source Project (AOSP), followed by the release of factory images and OTA updates for Nexus devices.

Hopefully, Android 5.1.1 will fix a few outstanding problems, including the memory leak bug, which users have been experiencing since the initial release of Android 5.0, as well as other issues stemming from the recent release of Android 5.1 Lollipop.