You did not see the time it came out Android 5 Lollipop for OnePlus One?
Here it is, the CyanogenMod 12, in unfortunately unofficial dress, but with updated versions on a daily basis.
The only bugs that are indicated in the Thread on XDA are stability issues.
The links find them all on the official thread HERE including GAPPS.
Now let's go to the installation.
- First, let's go to Recovery. We perform a Factory Reset in the "Wipe" entry.
If you do not have a recovery then follow this guide. Click here
- Let's go back and let's go to the "Install" entry. We look for the ZIP file "cm-12-xxxxxxxx-UNOFFICIAL-bacon.zip", click on it and flash the zip file.
- Let's go back to the Storage and look for the ZIP file with the GAPPS "bpear-gapps-lp-xxxxxxxx-faceunlock.zip" and flashamo this too.
- We plug on Wipe Dalvik & cache and finally we can plug on "Reboot System" to restart the device.
Here is the CyanogenMod 12 with you Android 5 Lollipop. 
via | Sm @ rty
