Apple announces it’s releasing iOS 15, iPadOS 15, watchOS 8 and tvOS 15 on September 20

Having seeded release candidates for iOS 15, iPadOS 15, tvOS 15 and watchOS 8 to its registered developers and public beta testers, Apple has now officially announced the iOS 15 release date. As it turns out, iOS 15, along with other Apple OS updates (except for one), are scheduled to drop on the same day as iOS 15: Monday, September 20, 2021.


  • Apple announces iOS 15 and iPadOS will release on September 20
  • watchOS 8 and tvOS 15 are arriving on the same day, Apple confirmed
  • Apple didn’t announce a release date for macOS 12 Monterey though
  • Currently, Monterey is expected to launch “this fall”
  • Apple is rumored to hold a Mac-centric product reveal in October

A still image taken from Apple's September 2021 “California Streaming” event video which shows CEO Tim Cook walking toward the audience with his hands in praying position. In the background behind him, a huge slide displays an image of a California desert. Apple announced piublcily at that event the official iOS 15 release date.

When will Apple launch iOS 15, iPadOS 15, tvOS 15 and watchOS 8

Apple announced during its September 14 “California Streaming” virtual product tour that the operating systems powering its iPhone, iPad, Apple TV and Apple Watch product families will receive major updates on the same day: Monday, September 20.

  • iOS 15 release date: Monday, September 20, 2021
  • iPadOS 15 release date: Monday, September 20, 2021
  • tvOS 15 release date: Monday, September 20, 2021
  • watchOS 8 release date: Monday, September 20, 2021

If you’re planning on upgrading your devices when the aforementioned updates launch, it might be a good idea to check the system requirements for iOS 15, iPadOS 15 and watchOS 8.

As for tvOS 15, which runs on the Apple TV HD and Apple TV 4K models like tvOS 14, Apple didn’t spend much time talking about what’s new in tvOS 15 but as iDB highlighted, turns out that there are quite a bit of enhancements and under-the-hood tweaks in tvOS 15.

When will Apple release macOS 12 Monterey?

Apple did not announce a release date for macOS 12 Monetary during the pre-taped “California Streaming” event, which was held virtually on September 14, 2021.

That was entirely expected because Apple unveiled no new Macs during that event. Apple’s macOS Monterey Preview webpage currently states that the operating system is set to launch publicly “this fall,” the same tentative release date we’ve known about for months now.

That being said, Apple is rumored to hold another product event sometime in October which is expected to focus on Mac updates. The new computer models that Apple will announce at that event, such as M1X-powered MacBook Pros, will ship with macOS Monterey preinstalled.

It’s before those new Macs begin arriving that we expect macOS Monterey to release for public consumption as a free software update for all compatible Macs. macOS Monterey supports all the same Mac models as its predecessor, macOS Big Sur. So if you have Big Sur installed on your Mac, you will be eligible to receive the Monterey update as soon as it launches.