watchOS 8.6 release candidate is now available for developers

Last month, Apple originally started testing the watchOS 8.6 on the Apple Watch. After testing it through four beta builds, today, Apple kicked off the watchOS 8.6 release candidate for developers. Not only watchOS 8.6 RC, but the release candidate is also out for iOS 15.5, iPadOS 15.5, tvOS 15.5, and macOS 12.4. These builds are packed with a bunch of new features and enhancements. Here you can check everything about watchOS 8.6 release candidate update.

The latest watchOS goes live for developers with the 19T572 firmware version. As it is a release candidate build, it requires a little more data than the last beta, yes, it weighs around 139MB in size, while the watchOS 8.6 beta 4 was 129MB. As always the update is available for all Apple Watch models compatible with watchOS 8.

For those, who are not familiar with the release candidate. RC aka Release Candidate is the new naming for Apple’s Golden Master builds. It is a final build rolling first to the developers for final testing. It simply means that we’re close to the public build, usually, it will be available within a week or so.

Talking about the features, then as per the changelog, the update brings ECG app support for Apple Watch Series 4 or later and Irregular heart rhythm notifications in Mexico. Here’s the complete changelog.

  • watchOS 8.6 includes new features, improvements, and bug fixes, including:
    • Support for the ECG app on Apple Watch Series 4 or later in Mexico
    • Support for irregular heart rhythm notifications in Mexico
      For information on the security content of Apple software updates, please visit this website:

Apart from the changelog, then you can also expect these small changes in the watchOS 8.6 – a new name for Physical Apple Card – now known as Titanium card, Apple Cash option in Messages app instead of Apple Pay, and a few other minor changes. Let’s take a look at the steps on how you can upgrade your Apple Watch to watchOS 8.6 release candidate.

How to install watchOS 8.6 RC

In case you’re a registered developer or a beta tester, then you can follow the below-listed steps to download watchOS 8.6 RC on your Apple Watch. Before heading over to the steps, make sure that your iPhone or iPad is running on the latest iOS 15.5 RC and iPadOS 15.5 RC.

  1. At first, open the Apple Watch app on your iPhone.
  2. Tap on My Watch.
  3. Then click on General > Software Update > Download and Install.
  4. Enter the password for confirmation.
  5. Tap on Agree to the terms and conditions.
  6. Once done, tap on install.

Once you tap the install button, it will download and install the newest update on your Apple Watch. Once the installation process is completed, the watch will automatically reboot to the latest watchOS 8.6 release candidate. Now you can also enjoy its latest feature before the stable release.

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Haneet Singh

Haneet is the Founder and Editor-In-Chief of YTECHB. He has a huge passion for tinkering with latest smartphones, wearables, smart home devices, smart TVs, and more. As an avid Apple Ecosystem user, he loves customizing his iPhone and iPad to suit his needs. For tips, you can connect Haneet at In 2019, Haneet and the YTECHB team exclusively shared the wallpapers of iPhone 11 right before the launch event. In 2020, Haneet alongside his team members shared exclusive renders and official photos of two Samsung Galaxy smartphones - the Galaxy M11, and Galaxy M21. Later, the YTECHB team leaks information about Motorola's feature phones and Razr 3. In the last few months, our team shared Galaxy S24 Ultra leaks and more. You may come across his work getting mentioned in The Times of India, India Today, Hindustan Times, NDTV, TechRadar, Digital Trends, Yahoo News, GSMArena, Android Authority, Android Central, Android Headlines, SamMobile, XDA, 9to5Google, and many other publications. He works across news, updates, features, guides, and more. If YTECHB writes about it, you can expect him to be involved in some way.

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