What does this mean for you? If you are running older software, you must upgrade it BEFORE you upgrade to Mac OS Catalina. Apple is really being clear about this upgrade! If you dismiss the notice it will reappear in 30 days.
These warnings are popups that appear when restarting the computer or opening an app.
It has been 9 years, so it truly is time for this change to happen.Īpple started warning Mac users about plans to end support for 32-bit apps when they introduced macOS High Sierra. For Apple to ensure that all Mac apps going forward include all of the latest advancements and optimizations, support for 32-bit needs to end.ģ2-bit apps can run on a 64-bit system as they've been doing for years, but Apple wants to get rid of outdated apps to make sure everything that runs on the Mac is properly optimized and isn't an unnecessary drain on system resources. Certain technologies from Apple will only work with 64-bit apps. With the launch of Mac OS Snow Leopard in 2009, Apple's operating system took advantage of the faster 64-bit processor.Ĭompared to 32-bit apps, 64-bit apps can take advantage of more memory and offer faster system performance. In 20, Apple transitioned from the PowerPC hardware to Intel hardware using 64-bit processors. The software that ran on these computers was also 32-bit. Here is an explanation about the difference and why Apple is doing this.ģ2-bit processors and 32-bit operating systems were used in all computers (Mac & PC) until the early 1990s. This transition has been a long time coming and most current software complies. With the upgrade, Apple has finally pulled the plug on older "32-bit" apps, requiring all software (apps) you run to be 64-bit. Apple has released the next Mac OS Catalina (10.15) in early October.
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