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Lightroom 6 is a 64 bit app. This is confirmed by checking system information.
Despite this, my MacBook Pro running Mojave warns "Adobe Lightroom" is not optimized for your Mac and needs to be updated. This app will not work with future versions of macOS..." Clicking on 'Learn More' takes you to an Apple web page that explains only that older 32 bit apps won't work in future macOS releases.
What is up with this?
Sure you don't have two versions of it installed? Perhaps it is using some 32-bit code? The current version is Lightroom CC. Your version has been surpassed by version 7.5 and CC. You may wish to upgrade in order to see if the warning ceases.
I only have LR 6. Not interested in CC subscription for on and off use. Seems others have had the same warming and seems there may be more to the impending obsolescence story than 32 vs 64 bit alone. Or, maybe just a faulty warning?
I have the same issue. I think that the problem may be that the Map module (which I never use) has been deprecated as of 30 November 2018. Apparently Google changed an API call. I don't know whether or not an individual module in LR 6 could be 32 bit. The app itself reports that it is 64 bit.
In any case, when the next OS release comes out I'll do what I always do and install it first on a precloned MacBook Pro and see what works and what doesn't. I can then take a view on what to do on my main machine. Additionally I have virtualised Mac OS using VMWare so that I can run a virtual High Sierra OS on a Mohave machine and when the next OS appears I'll virtualise Mohave on it and that way I should be able to extend the life of my permanent LR6 and Photoshop CS6 for some time. I'm disinclined to go the CC route. I've been buying and using Photoshop since version 4. So about 23 years.
I agree that it's less than ideal but performance is not an issue for me. My primary focus is photography (no pun intended) and I only shoot RAW. The bulk of what I need to do vis a vis image processing, cataloguing, retrieving etc can now be done with various image processing software. When it comes to printing though and preparing for printing, I only ever use Photoshop. Ditto if doing some serious image manipulation. It's kind of in my DNA. LOL
Provided those features of PS/LR that I use continue to work albeit somewhat slowly, I'm ok with that.
Just out of curiosity I just launched Photoshop CS3 under Mojave (real rather than virtual) and apart from the version of Adobe RAW in CS3 being unable to read my recent files, the bits that I need still work.
I've been using Mojave for months but I only just got this warning today. Most def running 64 bit version of LR6. Non-subscription. What the heck?
Particularly worrisome as this is the last version of stand-alone LR; Adobe says there will be no more updates.
FWIW, there are many limitations running High Sierra and above as a virtual guest, not to mention the least of which is the lack of accelerated graphics.
Lightroom 6 (64 bit app) Future Incompatibility Warning in Mojave
