Another week, another failed promise from OnePlus. The company promised that its homemade OxygenOS and the new CyanogenMod update would come to the OnePlus One by March 31st and here we sit a day later with neither being available. To be fair, the CyanogenMod update is entirely reliant on Cyanogen, which never actually promised us anything, which CEO Kirt McMaster addressed in a colorful comment.