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  1. #1
    Macintosh OS 10.15 "Catalina"
    Randy B. Singer's Avatar
    Member Since
    Feb 01, 2011
    Sacramento, California
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    Macintosh OS 10.15 "Catalina"
    The next version of the Mac OS will be out in a few months, and it will be called "Catalina."

    The big news is that it won't run 32-bit apps, only 64-bit apps.

    So, lots of folks are going to be asking if "this app" or "that app" is 64-bit in the next few months, or "which apps do I have installed that won't run under Catalina."

    Fortunately someone has created free software to make finding out if software is 64-bit dead easy (even easier than using Apple's System Profiler):

    32-bit check (free)
    Check any, or all, folders of your choosing, and you can check just your apps. Generates text reports if you like.
    32-*****eck & ArchiChect – The Eclectic Light Company

    Archichect (free)
    Drag and drop utility that instantly tells you if one particular app is 32- or 64-bit
    32-*****eck & ArchiChect – The Eclectic Light Company
    Randy B. Singer
    Co-author of The Macintosh Bible (4th, 5th, and 6th editions)
    Mac OS X Routine Maintenance •

  2. #2
    Macintosh OS 10.15 "Catalina"
    Slydude's Avatar
    Member Since
    Nov 16, 2009
    North Louisiana, USA
    Your Mac's Specs
    2.8 GHz 2008 MacBook Pro 10.11, 8 GB mem, iPhone XS, 2015 iMac 16 GB 10.15.5 beta
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    Thanks for that Randy. I've used Apple System Profiler a few times to find this out but it's not as convenient as it used to be. It seems like sometime recently we lost the ability to print a text-based report. I think this worked as recently as in High Sierra but don't quote me on this.
    Last edited by Slydude; 06-23-2019 at 11:59 PM. Reason: Corrected major typo
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

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  4. #4
    Macintosh OS 10.15 "Catalina"
    pine man's Avatar
    Member Since
    Jul 15, 2014
    West Sussex, UK.
    Your Mac's Specs
    iMac 21.5" 3.1GHz Core i7 16GB RAM Catalina. iPad Air. iPhone 6S. iPod nano.
    Rep Power
    Thanks for that Randy. Surprisingly a lot of mine are Apple apps plus a sprinkling of Adobe ones as well (not so surprisingly!).

    Nothing I have got displayed as 32bit would cause me to lose sleep if it didn't work with the advent of Catalina.
    Peter - I used to be paranoid but now I just worry all the time

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