Aside from the OnePlus One, the YU Yureka is the other Cyanogen-running smartphone that you can buy right now. It recently got its 12 S update to Lollipop 5.0 but is now receiving another OTA with a newer version. Just don't get excited thinking it's Android 5.1, we're still on 5.0 here. The build number has jumped from YNG1TAS0W0 to YNG1TAS1K0, which is dated May 1st 2015.

The changelog sent for this update is simple: "This update provides power improvements and security enhancements for your device." Since both improvements and enhancements denote positive things, I'm gonna go out on a limb here and assume that the update is a good one.

However, it's slowly rolling to everyone as an OTA so if you're in a hurry, you can directly download the full firmware ZIP file (644MB) from Cyanogen's site at the source link below and flash it to your device. YU are welcome.