Today is a big update day for Apple, as the company has released new versions for all of its software platforms. So regardless of which Apple device you have, an update is probably on its way to you. As you'll see, these are all minor, focusing on fixing bugs and improving the general user experience.
iOS 10.2.1 is a bug fixing release that also brings some unnamed security improvements, according to Apple.
macOS 10.12.3 improves automatic GPU switching on the latest MacBook Pro models and resolves some issues with Adobe Premiere Pro on the same laptops, fixes an issue that prevented searching for scanned PDFs in Preview, resolves a compatibility issue with PDFs that are exported with encryption enabled, and also fixes an issue that prevented "some third-party applications" from importing images from digital cameras.
watchOS 3.1.3 follows the pulled release of 3.1.1 last month, which unfortunately bricked some Apple Watches. The 3.1.1 version never got re-released and there wasn't a 3.1.2 going out either, in a bit of an odd situation. Anyway, watchOS 3.1.3 is just focused on bug fixes and performance improvements, with nothing less vague to talk about.
Finally, tvOS 10.1.1 is in the same boat, with "general performance and stability improvements" coming your way if you own a fourth-generation Apple TV.
apple please check new updates. because cellular data network is no longer found on the settings of the phone -the old iOS have cellular data network -now the data of my phone is not working when I update the iOS to 10.2.1 -please help
usually means its going to do the opposite with an update from apple...
Upgrade is "time to buy a new model"...