The new Over The Air (OTA) update of Android 4.4 to 4.4.1 is due in a couple days for Nexus 5 and in a few more days for other devices with 4.4, such as Nexus 4 and Nexus 7. I think Nexus 4 got the update to KitKat 4.4 several weeks ago with little problem, by the way.

4.4.1 makes some vast improvements to the camera app. The improvements are so good that industry pundits claim that the camera app is in the middle of the bunch of the top level smartphones, which is a luxurous place to be. 

From usage tests, the older 4.4 camera app, was too slow for the way that many people were using it (the ergonomics were wrong). The focusing was taking too long and the shot would be missed or the person would move the camera before the (in HDR+ setting) the HDR would be finished, making a blurry picture. Also the pictures showed the full brightness range of the picture rather than “punching up” the saturation and contrast, as people are want to prefer. So now the pictures look more like an iPhone image. The new camera app triggers the shutter as soon as the focus is “acceptably close” to right, instead of overfocusing and coming back to the sharpest focus. People who do most of their photography with a telephone are not diciplined in holding still. So this fix matches the ergonomics and situation of the operator. So far, all the testers prefer it. I have been increasing the saturation and contrast in many of the photos I’ve taken with the Nexus 5 on Android 4.4, so this will likely save me a few steps.