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4 Reasons Not to Install iOS 15.1 & 11 Reasons You Should



Apple’s iOS 15.1.1/iOS 15.1 update could have a huge impact on your iPhone’s performance. While some of you should install the new software right now, others are better off waiting a few hours or perhaps even a few more days before moving up from iOS 14 or older iOS 15 software.

The company’s released its new iOS 15.1 upgrade for iPhone and it’s available to download right now if you own an iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, or iPhone SE 2.

If you own an iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, or one of Apple’s new iPhone 13 models, you can move up to iOS 15.1.1. iOS 15.1.1 is a small point upgrade with a single bug fix for these devices.

The iOS 15.1 update is chock full of changes including new features, essential bug fixes, and security patches to help protect your phone.

iOS 15.1 requires a sizable download. It’s around 1+GB for iPhone owners moving their device up from iOS 15.0.2. It might be even bigger for those of you moving up from older versions of iOS. That’s because the features and fixes from the updates you skipped are baked into your version of iOS 15.1.

iOS 15.1.1 requires a smaller download for iPhone 12 and iPhone 13 owners, but it’s still several hundred megabytes for users moving up from iOS 15.1.

Those of you dealing with issues on older versions of iOS could see a huge turnaround after installing iOS 15.1.1 or iOS 15.1. We’re already hearing about positive changes. That being said, we’re also hearing about various bugs and performance problems.

If you own an iPhone 13 or iPhone 12 running iOS 15.1.1 and you run into trouble, you can try downgrading back to iOS 15.1 and see if that improves your phone’s performance.

If you own an iPhone that’s older than the iPhone 12, and it’s running iOS 15.1, you can’t downgrade. Apple’s closed off the downgrade path back to the previous version of iOS 15. The company isn’t signing on older versions of iOS either.

This means those of you having a great experience on iOS 15.0.2 and older need to approach the iOS 15.1.1 and iOS 15.1 updates with caution. Once you make the move, there’s no going back.

If you’re currently debating a move to iOS 15.1.1 or iOS 15.1, allow us to walk you through the best reasons to install the software today and the best reasons to hang around on your current version of iOS for a little bit longer.

Install iOS 15.1.1/iOS 15.1 for Better Security

Install iOS 15.1.1/iOS 15.1 for Better Security

If security is important to you, think about installing Apple's iOS 15.1 update right away.

iOS 15.1 has important security patches on board and they'll help protect your phone. You can read more about them on Apple's website

Apple's iOS 15.1.1 update for iPhone 12 and iPhone 13 doesn't come with any known security upgrades on board. That said, if you missed iOS 15.1, you'll get its security patches when you move your iPhone 12 or iPhone 13 to iOS 15.1.1. 

If you missed iOS 15.0.2 you'll also get its security patch with your upgrade. You can learn more about it right here.

iOS 15.0 also brought numerous security patches to your iPhone. If you'll be moving up from iOS 14 and you're interested in the exact nature of these improvements, you can read about them over on Apple's security website.

If you skipped iOS 14.8 or any older versions of iOS, you'll get the security patches from those updates with your iOS 15.1.1/iOS 15.1 update as well. 

In addition to those patches, iOS 15 comes with some security and privacy upgrades including improvements to Siri. Requests made to Siri are now processed on the device itself using Neural Engine. This makes it more secure. 

If you're an Apple Card user, you'll now get a security code that changes regularly to use when you make online transactions. 

Apple's also included a built-in authenticator that's similar to Google Authenticator. This will let you generate verification codes for enhanced sign-in security under your Passwords.

There's also a Mail feature that hides your IP address. The company will add a new App Privacy report feature in the next version of iOS 15 that will tell you when an app has accessed sensitive information. 



  1. Janis Thompson

    09/21/2021 at 10:31 am

    Thx for this! I think I’ll stay with 14.8 for the foreseeable, eh. More and more storage on my poor old 6s is being used by all these ‘great’ upgrades. You’d think they want me to buy a new phone. Lol❤️❤️

  2. Al Mahoney

    09/21/2021 at 10:40 am

    WiFi didn’t work outside for my wife and me.

  3. nevergonnahappen

    09/22/2021 at 5:46 am

    it works well on my 8

  4. Shaihaan

    09/29/2021 at 3:41 pm

    Is it okay for iPhone 7

  5. Irene Johnson

    11/12/2021 at 3:49 am

    Having real problems with phone (iPhone6s) overheating and battery draining.

  6. Sandy

    11/15/2021 at 9:43 am

    Me either. Did you find a fix?

  7. GordN

    11/25/2021 at 11:05 am

    Calendar with exchange – barely, if at all, works anymore. Reverting

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