iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Apple Starts Rolling Out 90 Second Song Previews in iTunes
Apple has started rolling out 90 second song previews on iTunes tonight. The offering is presently sporadic with not every album, or even every eligible song on an album, offering a full 90 second preview.
According to a previous letter sent to music labels, Apple intends to offer 90 second previews on all songs longer than 2 minutes and 30 seconds. Songs shorter than this length will continue to offer only 30 second previews.
Apple's email also noted that by continuing to offer their music on the iTunes Store, labels are indicating their acceptance of the new terms. Consequently, any labels who do not wish to agree with the terms must withdraw their music from the iTunes Store.