![]() ![]() Here are some other non-64-bit applications that may be a cause for concern, we address these and others below:Īll these apps have newer versions available that do support 64-bit, and the developers would encourage you to update. Click on the column that’s headed ’64-Bit’ to see which apps aren’t ready for the transition.Īpple’s ‘Not Optimized for your Mac’ warning we have more information here.Any apps that are listed as 32-bit may stop working if you update to macOS 10.14 when it launches in September 2018.Look to see whether the apps you use are listed as 64-bit application in the final column.Click on the Apple logo in the left corner of your Mac screen.Here’s how to use MacOS to identify 32-bit apps: If you want to get ready for the transition to 64-bit apps, you can check to see if any of your apps are 32-bit now. In terms of the final deadline for moving into the 64-bit era – Apple will probably stop supporting Mojave in 2020 and since that’s the last OS to support 32-bit, that’s basically the end of any form of support for 32-bit apps on a Mac (unless you run an unsupported Mac OS that is, which you may well be doing if you have such ancient apps!) Therefore the first thing to do is to check whether any of the apps you are currently using on your Mac are 32-bit and make plans to stop relying on them by September 2019 if you will want to update to the version of macOS that launches then. So, if you are seeing a warning about an app it’s a good indication that the app you are using might encounter issues if you try to run it in Mojave.Įven if it does run in Mojave, the next version of macOS will not run 32-bit apps at all, so it’s soon going to be time to upgrade to a newer version of your old app, or find an alternative. Apple indicated that 32-bit support in Mojave will be with compromises. That doesn’t necessarily mean that the app will run without issues. Then in June 2018, while announcing macOS Mojave, Apple’s vice president of software Sebastien Marineau stated that: “This year, we’re announcing that macOS Mojave is the last release to support 32-bit, at all.” The warning indicated that: “This app needs to be updated by its developer to improve compatibility”. Then in April 2018 Mac users running High Sierra started seeing warnings if they tried to open a 32-bit app stating that the app ‘is not optimised for your Mac’. Peripherals that use drivers that haven’t been updatedĪpple indicated back in June 2017 that macOS 10.13 (High Sierra) would be the last Mac operating system to support 32-bit apps “without compromise”.Apps that have their own implementation of new Mojave features like Dark Mode, or rely on features removed from Mojave.Old apps that are no longer supported by the developer.If your apps fit into one of the following categories it’s likely that you will experience problems: There are a few areas where there are likely to be compatibility issues with Mojave and certain apps.
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