Android 9 Pie may be the latest Android version, but most Android phones aren't likely to receive an update to it anytime soon. The latest Android distribution statistics show that Android Oreo still has a long way to go before it becomes the most widely used Android version, while the Android Pie official update story still has a few months to go before it gains any momentum. In the absence of official updates, enthusiasts can turn towards unofficial Android Pie ports, which are available for a surprisingly broad variety of smartphones. At this point, however, most of these Android Pie ports are based on stock AOSP and don't contain many added features. LineageOS 16, based on Android 9 Pie, is still in development, although again, users can flash unofficial builds if they feel they can handle teething issues.

The official, stable version of LineageOS remains LineageOS 15.1, which is based on Android 8.1 Oreo. The first official builds of LineageOS 15.1 began to roll out in February, and since then, many devices from different device makers have joined the list of officially supported devices. Now, official LineageOS 15.1 builds are available for the Motorola Moto X4 (device code-name: payton) and the Motorola Moto Z2 Play (device code-name: albus).

LineageOS 15.1 brings many added features over stock Android 8.1 Oreo. Back in February, we did an in-depth overview of the ROM's features. Since then, the most popular third-party ROM distribution has gained the privacy-oriented Trust interface, support for A/B devices including the Google Pixel/XL, Xiaomi Mi A1, and more.

The download pages and the installation instructions for flashing LineageOS 15.1 are linked in the source links below.

Download LineageOS 15.1 for the Motorola Moto X4Installation instructionsXDA Forum for Moto X4

Download LineageOS 15.1 for the Motorola Moto Z2 PlayInstallation instructionsXDA Forum for Moto Z2 Play