Android L
OnePlus One to get Android L.Wikipedia

Chinese mobile manufacturer OnePlus has confirmed that its flagship smartphone of the year will get Google's latest iteration of the Android operating system.

Announced in April this year, the OnePlus One was launched with CyanogenMod 11S based on Android 4.4.2 KitKat but it will not be running on the same software version as the official forum suggests OnePlus One will be updated to Android L.

There is no information on a specific date for the rollout but the company promised that the update will be available within three months of Google releasing the final Android L build.

Google is expected to release Android L for its Nexus devices this fall, which means sometime in the September-October timeframe.

This again indicates OnePlus will release Android L for the OnePlus One by the end of this year. Below is the post at OnePlus forum about Android L update:

Friends,

So a lot - I mean, a lot - of people are asking about whether we'll be getting on the Android L train. It was announced while I was asleep and when I got back to work the morning after, there were already a bunch of forum posts and (strangely) customer support requests about it.

Well, we're keen to announce today that the OnePlus One will indeed be getting the L treatment. When, you ask? That depends on Google. We promise to have it done within three months of their releasing a final build.