Hi, some of the sites are not loading on safari whilst using the latest MacOS High Sierra version 10.13.6 which is the currently what version my iMac of late 2013 is running on, is there a way to update to the latest version?
I can't see it needs an update on *Software updates* however some of the sites are not running properly which is quite frustrating.
Please help.
TIA.
iMac 27″, macOS 10.13
Back up your High Sierra installation to Time Machine before you even consider installing macOS Catalina. The latter no longer supports 32-bit applications and may require newer versions of some applications that you currently use on High Sierra. I recommend that you download the free Go64 application. It will tell you what you have that is still 32-bit and incompatible with an upgrade to Catalina which only supports 64-bit applications. For those 32-bit applications found, check with their vendors for 64-bit versions that are known to be compatible with macOS Catalina. That may incur new purchase/upgrade expenses in some cases.
You can get the full macOS Catalina 10.15.7 installer from How to download and install macOS - Apple Support which will download the installer into your Applications folder and probably automatically launch it prompting you to continue the installation.
Catalina is the oldest operating system still supported by current browsers from Firefox, or Brave which provide current Internet security protocols.
Back up your High Sierra installation to Time Machine before you even consider installing macOS Catalina. The latter no longer supports 32-bit applications and may require newer versions of some applications that you currently use on High Sierra. I recommend that you download the free Go64 application. It will tell you what you have that is still 32-bit and incompatible with an upgrade to Catalina which only supports 64-bit applications. For those 32-bit applications found, check with their vendors for 64-bit versions that are known to be compatible with macOS Catalina. That may incur new purchase/upgrade expenses in some cases.
You can get the full macOS Catalina 10.15.7 installer from How to download and install macOS - Apple Support which will download the installer into your Applications folder and probably automatically launch it prompting you to continue the installation.
Catalina is the oldest operating system still supported by current browsers from Firefox, or Brave which provide current Internet security protocols.
The latest version of macOS which your computer can run is macOS 10.15 Catalina released in 2019.
The direct App Store download link for this is: Catalina 10.15
Hope that helps.
Note that if you install Catalina,
Thank you for this detailed response. I will give it a try
How to update macOS to latest version possible on a late 2013 iMac
