Like others have said, if you want to move to Catalina, at least wait for the. And interestingly, I've seen reports of apps with 32-bit pieces that are reported to run fine under Catalina. 32-bit app checkers won't find any of these media related issues.Īnd if you happen to be using Aperture, it won't run in Catalina even though it's supposedly 64-bit. A similar surprise: older media embedded in Keynote presentations won't play and needs to be converted and re-embedded. Fortunately I still have machines running older OSes and was able to convert easily. ![]() ![]() I found a lot of old videos that wouldn't work in Mojave because they used codecs that Apple discontinued in Mojave. While you're in Mojave, in addition to noting which 32-bit apps you have, also check any downloaded media you have. Apple must have changed something, because the 10.14.5 installer worked like it should have on the first try. I went through misery trying to upgrade my 2012 MBP from Sierra to 10.14.4, so I gave up. If I had a choice between Mojave and Catalina, I don't think that I would be too quick to choose Catalina as my only/main OS, knowing that I would lose so many things. My copy of Lightroom 6.14 is 64-bit but depends on a 32-bit installer application, which would make it very brittle under Catalina. These include Adobe helper applications, games, printer/scanner software, iDVD, Microsoft Office, and more. With that in mind, if I go into About This Mac / System Report, ask for an Applications list, and sort it by the "64-bit (Intel)" column, I see lots of 32-bit applications. When the time comes for an upgrade, it will. My main Mac can't run Mojave or Catalina – so the 64-bit-only issue doesn't affect me quite yet. ![]() You might then find that it costs $$$ for an upgrade – or that the developer has simply abandoned that software, leaving you high and dry. The practical implication is that some of your software might not work under Catalina. (I've done a bit of searching on this forum and note that 32 bit applications are not supported but don't know what the practical implications of this are.) I'd appreciate any comments on potential pitfalls if I do this. I contacted Apple support concerning a problem I had with installing Mojave and was encouraged to go straight to Catalina (I'm advised that my computer can take this). I have a late 2012 iMac running OS X 10.11.6 and want to install some software that needs later than 10.3.
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