It's up to the developers to update the apps, and, in some cases, this won't be done, so be prepared to find replacements for some older apps next year. It's a good idea to update as much of your software as possible before upgrading to Mojave.
How to Prepare Your Mac to Upgrade to macOS Mojave | The Mac Security Blog
Most apps these days offer updates automatically, or, if you've purchased them from the Mac App Store, via the App Store app. Don't worry about small apps being updated, but for things like Microsoft Office, or Adobe's Creative Cloud apps, and other apps you depend on for your work, it's a good idea to check for updates before upgrading to ensure that you won't have any issues.
Another thing you can do is clean out some of the gunk that has been on your Mac for a while.
You can also use Intego Washing Machine to clean up and delete files you no longer need, such as cache files, downloads, duplicates, and more. Before upgrading, it's a good idea to run Disk Utility's First Aid tool on your startup volume, as well as on the disk s you will use to back up your Mac see below. Launch Disk Utility, select your startup volume, then click First Aid in the toolbar. This will take a few minutes, and during the process your disk will be locked so Disk Utility can make repairs, if necessary. When this is completed, it will tell you if all is well, and if it has made repairs.
If your Mac is compatible, and you're ready to upgrade, the first thing you should do is back up your Mac. You can use Time Machine if you have an external hard drive, but the safest way to do this is to clone your drive. A clone, or bootable backup, is an exact copy of everything on your Mac's drive: You can do this with Intego Personal Backup. If anything goes wrong during the upgrade process, you can boot from the external drive, and, if necessary, recopy all its files to your Mac.
There are two ways to upgrade a Mac. The simplest is to run the macOS Mojave installer, which will install the new files over your existing operating system.
Upgrade to macOS Mojave.
It won't alter your data, but only those files that are part of the system, as well as bundled Apple apps. The other is to use Apple's Migration Assistant. This app is designed to move your data from an old Mac to a new one, but you can also use it for an upgrade. To do this, you should clone your Mac, on at least two drives one to use for the upgrade, and another as a backup.
Start up your Mac, then press the Option key immediately so you can select that drive as the startup drive. You did make two backups, right? Download the macOS Mojave installer and launch it. It will ask which drive you want to install the software on; select the now erased drive in your Mac. Follow the instructions to complete the installation. When you've finished, you'll have a virgin operating system on your Mac, and you'll still be working from your external drive.
You can now copy all the files in your home folder, as well as personal apps. Setting Up a New Mac: A clean installation is time consuming, but it can weed out old files from apps you no longer use, and it's a good way to start with a clean slate. Some people do this for every major operating system upgrade; I only do it every few years, because it does take a long time. If you do a clean installation, make sure to keep both of your clones for some time, just in case there's something you forgot to cop over.
How to Upgrade Your Mac to the macOS Sierra
Late i7, and Server Late Macmini6,2 Upgrade your mini. Late Macmini6,1 Upgrade your mini. Server Mid Macmini5,3 Upgrade your mini. Mid 2. Server Mid Macmini4,1 Upgrade your mini. Mid Macmini4,1 Upgrade your mini. Server Late Macmini3,1 Upgrade your mini. Late Macmini3,1 Upgrade your mini. Early Macmini3,1 Upgrade your mini. Mid Macmini2,1 Upgrade your mini. Late Macmini1,1 Upgrade your mini. Mac Hardware Requirements. Feature Requirements. Dictation and Voice Memos Requires a microphone built-in or external.
Who can upgrade Mac OS to Sierra: macOS 10.12 compatibility list
Spotlight Suggestions Requires a broadband Internet connection. Force Touch gestures require a Force Touch trackpad.
FaceTime Audio calls require a microphone built-in or external and broadband Internet connection. Auto Unlock Supported by Mac models introduced in mid or later. Supported by the following Mac models: