I remember hearing speculation some time ago that the Chinese were going to adjust the value of their currency as they were holding it to an artificially low level. Some people thought it would be a good idea if the Chinese let their currency float, like all other major currencies in the world. In any case, it seems like I heard this only a few months ago, and I never heard that anything had changed. Now from Robot Wisdom Auxiliary I find this graph which shows that the Chinese currency has been floating for the last two years, and the dollar has been steadily decreasing in value ever since.
Update December 2016 replaced missing graph.
9 hours ago