The much-ballyhooed-about KitKat update has arrived. Sprint announced today that it would begin rolling out the Android 4.4.3 update to the the -manufactured Nexus 5.

The update page only refers to a Sprint-specific change—automatic enabling of two new Sprint Spark bs— “Misc Android updates.” It’s likely that Sprint is only the first in what will be a procession of Android 4.4.3 updates to the Nexus 5 on other carriers.

Most of the information circling the web has indicated that Android 4.4.3 is merely an update to address bug fixes, such as the battery-killing camera bug affecting a small percentage of users. A source close to Android lice said that there will be no new added features or interface changes, that is saving all that for Android’s next big software release. (Android 4.5, which would carry an name like “llipop.”)

There hasn’t yet been any official confirmation from on the update, though we’ll report as more information is unearthed about what bugs are addressed.