Download Cyanogen OS 12.1 OTA Update for OnePlus One

Cyanogen OS has been updated to version 12.1 and OnePlus One owners are able to get the taste of the new version. This update came on top of android 5.1.1 lollipop.

According to Cyanogen:

This will upgrade your device to Cyanogen OS 12.1, based
on Android 5.1.1, Lollipop.

This update provides critical security fixes for your device to address recently publicized vulnerabilities on Android devices. As this is a sizable update, please allocate 20 minutes for the installation process and ensure your device is fully charged before proceeding with the install.

This update initially rolled out only for 2% users. Although you can download it manually. Just make sure not to flash with encryption.

Click Here for full ROM download link

See few glimpses of the latest update