According to a couple forum posts, the NVIDIA SHIELD Tablet and SHIELD Portable shouldn't have to wait too much longer to receive Android 5.1 Lollipop.

NVIDIA is rolling out an Android 5.0 Lollipop OTA update for its Shield Tablet, the company has announced.

The latest version of Google's Android mobile OS, 5.0 Lollipop, could be coming to your smartphone very soon. Here's the latest news on which phones will be getting it, and when it's scheduled to ...

The software version is QZ3_31F40. Since there were obviously quite a few changes contained in Android 5.0, owners have quite a few new features to get familiar with.

Within the About phone or About tablet section, look for the Android version entry. This will display your current Android version, along with the security update level and build number.