Hi,
I have an iMac 27-inch, late 2013, currently running on High Sierra (10.13.6). I
understand that the latest OS an iMac of this vintage can run is Catalina (apparently late 2012 models should be capable of updating to Catalina). My updates has not given me an option to update my OS to either Mojave or Catalina. What should I do? Thanks.
Cheers,
Grant
How to get old versions of macOS
The Apple Store on High Sierra is the usual place to find the UpGrade but since one has chosen to not upGrade when it was offered it has now become hidden on the Apple Store. The link above will bring you to an Apple page ( Use Safari asa Other may not work ) where you can download Catalina. The link will open a Redirect and Open the Apple Store to download Catalina.
Do a Time Machine Backup Before attempting.
Special NOTE : Catalina Does Not Support any Apps, Drivers or Extension that are 32 bit. Only 64 bit is supported and there is not workaround.
How to get old versions of macOS
The Apple Store on High Sierra is the usual place to find the UpGrade but since one has chosen to not upGrade when it was offered it has now become hidden on the Apple Store. The link above will bring you to an Apple page ( Use Safari asa Other may not work ) where you can download Catalina. The link will open a Redirect and Open the Apple Store to download Catalina.
Do a Time Machine Backup Before attempting.
Special NOTE : Catalina Does Not Support any Apps, Drivers or Extension that are 32 bit. Only 64 bit is supported and there is not workaround.
If you want to know which of your apps are 32 bit and will have to be upgraded or replaced download and run the free GO64 app.
I upgraded my Late-2013 27 inch iMac to just Mojave as there were some 32-bit Apple applications that I continue to use.
Thank you.
Very Welcome and Thank you too.
Do come back to these Forums if / when addition questions should arise. There are many Contributors willing to assist and or offer sound suggestions.
Upgrading a 2013 iMac from High Sierra to Catalina
