This morning, the update du jour was that for Mac OS X Yosemite 10.10.3. Now iOS 8.3 has become available, and the 291 MB (at least on my iPhone 6 Plus) update is chock full of improved performance, bug fixes, and — most importantly — a redesigned Emoji keyboard.
Here is a series of screenshots of the release notes from iOS 8.3 detailing all of the new or revised features:
