The issue is while they are 64 bit capable the installer is 32 bit. Monterey is around the corner, all are 64 bit. You can't install LR5 or LR6 on Catalina or Big Sur. Like Levina stated it will run on newer versions but might has issues. The only reason I'm saying it might be time to move on as LR5 is it's 12 years old. I just did a quick search for free software. Even Macs photo editor is pretty good I read. There have been so many changes since LR5 was introduced. I never use it but I couldn't pass it up at that price. I got mine for $25 but that was a few years ago. Look for deals on Affinity which is like PS. So, keep an eye on the above links until an “all clear” is reported by Adobe and, do not update to MacOS Catalina.If you don't use it much I'd look into an alternative, unless you really need LR's DAM. You can also read more about this in the October 8th PetaPixel post, “ Do not Update to macOS Catalina Yet if You Use Photoshop or Lightroom.”

And while you’re waiting, search for Catalina compatibility of all your existing programs (at least the ones you use). And if you do not update to MacOS Catalina right away, you might be saving yourself some serious grief. We prefer to wait on these major updates for exactly that reason. And, we don’t know the timetable for updates on those tools.Īdobe reports that if you’re a power user (but we think every user should use caution), “You may want to remain on your current version of macOS until these issues have been resolved.” Adobe has released a list of known compatibility issues with MacOS Catalina for Lightroom Classic and Photoshop.Īpple pushes out updates with the expectation that they will find out what’s not working as users update. There are also file naming issues and some broken plug-ins. The most recent release of Photoshop still has 32 bit tools that require updating and will not work in Catalina. And, I use Lightroom’s tethering feature with my Nikons in the studio. Lightroom has a few issues, including tethering for Nikon cameras. Apple has been phasing out 32-bit apps for the last 10 years and is now ready to take the final step, even if Mac users may not be ready to lose access to older apps.” The October 9th MacRumors story, “32-Bit Apps ‘Not Optimized for Your Mac’ No Longer Working on macOS Catalina,” says “Apple warned that it (Mojave) would be the last version of macOS that would support older 32-bit apps.

In this case, 32 bit support has been replaced with 64 bit support only. Apple does this: abandons technology for the next shiny toy.

Lightroom 6 catalina