Want to upgrade OS from 10.13.6 to 10.15.7

In betwen 1.13 & 10.15 was 10.16... macOS Mojave 10.14.6 - Technical Specifications

General Requirements

OS X 10.8 or later

2GB of memory

12.5GB of available storage (OS X El Capitan 10.11.5 or later)*

Some features require an Apple ID; terms apply.

Some features require a compatible Internet service provider; fees may apply.

Mac Hardware Requirements

For details about your Mac model, click the Apple icon at the top left of your screen and choose About This Mac. These Mac models are compatible with macOS Mojave:

MacBook (Early 2015 or newer)

MacBook Air (Mid 2012 or newer)

MacBook Pro (Mid 2012 or newer)

Mac mini (Late 2012 or newer)

iMac (Late 2012 or newer)

iMac Pro (2017)

Mac Pro (Late 2013; Mid 2010 and Mid 2012 models with recommended Metal-capable graphics cards)

https://itunes.apple.com/us/app/macos-mojave/id1398502828?mt=12

Thanks to MartinR Terminal command…

softwareupdate --fetch-full-installer --full-installer-version 10.14.6

It will place a copy of the installer in your Applications folder and you can use that to create a bootable installer.

Possible workarounds for not being able to upgrade...

Mostly you just need a more modern Browser than Safari on Catalina, Mojave, or High Sierra like Firefox or Brave.

https://brave.com/

https://www.mozilla.org/en-US/firefox/83.0/system-requirements/

Details about recent download Brave, for 10.13.6/10.14.6 are here:

<https://github.com/brave/brave-browser/releases/tag/v1.57.64>

Firefox 83.0 System Requirements (mozilla.org)

Opera…Thanks

https://www.opera.com/download/requirements

Opera system requirements | Opera

do you have a compatible computer?

macOS Catalina is compatible with these computers - Apple Support

suztours wrote:

2012 iMac (21.5-inch

You can upgrade an iMac (21.5-inch, Late 2012) as far as Catalina, but no further.

If you upgrade to Catalina, 32-bit applications will stop working, and iTunes will go away, replaced by separate applications. Catalina is not one of the "most recent three" and is not supported by the likes of Microsoft and Adobe. It is enough to let you run current versions of Firefox, LibreOffice, and the Affinity V2 programs (Photo, Designer, Publisher).

How to download and install macOS - Apple Support

When are you getting these error messages? Is it in the App Store when you try to get the new OS versions, after they have downloaded and you try to run them, something else?

Are you getting them from the App Store? By searching for them or by running software update? From the command line as BDAqua suggested?

BTW, the links to the App Store versions from online are:

Mojave: https://apps.apple.com/us/app/macos-mojave/id1398502828

Catalina: https://apps.apple.com/us/app/macos-catalina/id1466841314

Gi111deon wrote:

I want too upgrade my iOS 14.6 to iOS 15.0

Are you talking about an iPhone or a Mac? This thread is about Macs, which run macOS.

If you are talking about a Mac, which specific Mac (model name and hardware model year) are we talking about? That would determine whether you can upgrade to macOS 15 (Sequoia).

looks like you can go to macOS 10.14

macOS Mojave - Technical Specifications - Apple Support

I want too upgrade my iOS 14.6 to iOS 15.0