The Lineage OS team has updated LineageOS (both LineageOS 15.1 and 14.1) with support for more devices and new features. The most important changes for builds are March 2018 security patch and LineaGenuine – a new tool that warns users if use an uncertified build and take some measures in order to guarantee users the device’s resources are not being misused.
The latest build will also bring Android P’s Lockdown function to Power menu (for LineageOS 15.1), Cyan accent to system theme, GDPR-compliant dialer, improved Contacts app, dark UI for File manager and Jelly browser, updated Chromium webview version 65 (both 15.1 and 14.1) and more.
The LineageOS 15.1 (based on Android 8.1 Oreo) now supports more devices, which includes OnePlus 2, Nexus Player, Nexus 6P, LeEco Le Max2 (x2) and Pixel C. Besides the long list of supported devices, LineageOS 14.1 (based on Android 7.1 Nougat) is now available for Samsung Galaxy A5 2017, Galaxy A7 2017, Lenovo P2, BQ Aquaris U and OPPO R7s.
New to Lineage OS? This is one of the most popular custom ROMs available today (former CyanogenMod). One of the main advantages of this ROM is that it updates many devices to the newer version of Android OS even before the manufacturer has officially made available.
How to Install: As you all know, installing LineageOS custom ROM requires unlocked bootloader and custom recovery like TWRP installed on the device. You can download required build for your device from here and flash via TWRP.
If your device is running on official LineageOS 14.1, you can install the LineageOS 15.1 update via Updator app. (Source)