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4 Reasons Not to Install macOS Mojave & 16 Reasons You Should Install 10.14.6 Today



At this stage, you’re probably used to the new macOS Mojave features, but there are still new macOS Mojave updates rolling out even as macOS Catalina is almost here.

Apple is still on macOS 10.14.6, but they are on the second supplemental update to this release. This new update that arrives on September 26th is focused on security. The previous supplemental update added better performance when accessing large files, addressed Mac sleep issues and other problems.

Many users will want to install the free update today, but some Mac owners are better off waiting a few days before installing the latest macOS Mojave update. Even though macOS Catalina arrives in October, you shouldn’t skip this and wait for that release. With the release of macOS 10.14.6, there are more reasons to install the update, but there are still a few reasons to hold off.

Apple continues to roll out small updates to macOS Mojave months after the initial release. These small updates include important fixes and small new features. In most cases, the small updates are worth installing soon after release, but you may still want to wait a few days, just to make sure everything is working fine with the upgrade. This guide can help you decide if it is worth installing right now.

macOS Mojave is available on Macs as old as 2012, but it’s not available to all Macs that could run macOS High Sierra. There are performance improvements, new apps, security upgrades and loads of new features as part of this upgrade. If you are on an older mac, it may be time to upgrade to at least a 2015 MacBook Pro or to a new MacBook Pro.

Here’s Why You Shouldn’t Install macOS Mojave;

  1. Don’t Install if You Aren’t Prepared
  2. Don’t Install if You Are Worried About macOS Mojave Problems
  3. Don’t Install if You Use a Really old Mac
  4. Don’t Install if You’re Traveling

Here’s Why You Should Update to macOS Mojave;

  1. Install for Important Fixes
  2. Install for Apple News+ Fixes
  3. Install for Bug Fixes Fixes
  4. Install for Dark Mode & Upgrades
  5. Install for ZombieLoad Fix
  6. Install for AirPlay 2
  7. Install for Easy Logins in Safari
  8. Install for Group FaceTime
  9. Install for New Emoji
  10. Install for New Mac Apps
  11. Install for Desktop Upgrades
  12. Install for Security Fixes
  13. Install for Continuity Camera & New ScreenShots
  14. Install for Privacy Upgrades
  15. Install for Emoji in Mail and Siri Upgrades
  16. Install if You Have macOS High Sierra Problems

While macOS Catalina is coming this fall, this is still a key update that you should consider installing on your Mac, even if you are planning to upgrade to macOS 10.15 this fall.

You can downgrade to macOS High Sierra from macOS Mojave if you don’t like it. There is no time limit like on iOS 12, but it is a process and takes some time so do your research before you upgrade.

There are many good reasons to install macOS Mojave on your Mac today or to install the macOS Mojave 10.14.6 update. Before you start, you need to consider these reasons you shouldn’t upgrade yet. If you are already on macOS 10.14.6, it’s a good idea to install the supplemental update.

Install for Important Fixes

Install for Important Fixes

If you are running into issues with your Mac, you need to install this update on your Mac. The two supplemental fixes include security fixes and fixes for problems pestering many users. 

The second supplemental update includes a fix for the problem where "A remote attacker may be able to cause unexpected application termination or arbitrary code execution." This is an important fix. 

The previous supplemental update included the following updates, which you also get with this update if you hadn't installed the update yet. 

  • Resolves an issue that may cause certain Mac notebooks to shut down during sleep 
  • Fixes an issue that may degrade performance when working with very large files 
  • Addresses an issue that may prevent Pages, Keynote, Numbers, iMovie, and GarageBand from updating

If you are having problems with this, you should install the supplemental update right now. 



  1. Name

    09/24/2018 at 2:15 pm

    “This si built-in to Apple apps”


    • John Pappas

      10/23/2018 at 3:06 pm


  2. Jim

    11/15/2018 at 8:31 am

    The new iMovie SUCKS!!
    The new screenshot is horrible!!

    • Mal

      11/21/2018 at 6:14 pm

      really? Oh man! I’m glad i have been skeptical about upgrading… i need both of those to work well

  3. Mal

    11/21/2018 at 6:13 pm

    Will this affect my microsoft apps and adobe apps?

  4. Modernape

    12/26/2018 at 11:16 am

    “you also get strong passwords automatically created and tracked by Safari, and available on your iPhone and iPad too”

    …already a feature with previous MacOS back to El Capitan.

  5. Mikethemix

    01/08/2019 at 7:14 am

    my Adobe Photoshop Elements 13 didn’t work with Mojave – the upgrade charges for features I don’t need.

  6. SR

    02/01/2019 at 10:58 am

    Please define “really old.” Does my 2012 iMac fit that description?

    • Vic

      07/16/2019 at 5:23 am

      The following is a list of the Macs that are compatible with macOS 10.14 Mojave:

      MacBook (early 2015 or later)
      MacBook Air (mid-2012 or later)
      MacBook Pro (mid-2012 or later)
      Mac mini (late 2012 or later)
      iMac (2012 or later)
      iMac Pro (all models)
      Mac Pro (late 2013)
      Earlier Mac Pro versions (mid-2010 and mid-2012 with a recommended Metal-capable graphics card

      Check here for other requirements:

  7. JW

    02/15/2019 at 9:32 pm

    This article claims to have been written on Feb 11, 2019. But these comments are from 2018.

    “Don’t update if you’re worried about Mojave problems” XD

    This page is mess

    • None Given

      09/28/2019 at 7:19 am

      That’s because pages like this update the article “date” to fool people into thinking it’s up to date. A common problem with such sites

  8. Mike

    05/14/2019 at 9:42 pm

    After installing Mojave (against my better judgement, but at Apple Support’s insistence for debugging iTunes metadata issues) my MacBook Pro now runs slower, Mail frequently fails to connect to my email server, Time Machine no longer works (seriously…), network drives no longer connect automatically nor via server name (must be connected manually via IP address, and even then they sometimes disconnect spontaneously), the App Store remodel is horrible, screenshots are now slower with stupid features that true screenshots do not need, Dock real-estate is reduced with a new recently-used apps section (thank goodness that can be switched off), and brilliantly there is NO WAY to revert back to an earlier OS. Time Machine backup, you say? Nope – Time Machine isn’t working for me since the “downgrade” to Mojave. Apple needs to STOP changing things simply for the sake of changing things. If it ain’t broke, don’t “fix” it. I now need to erase my hard drive in order to have a “Genius” install an older OS on my computer. Yep, because after two weeks of daily Apple Support conversations with no less than 9 different “senior” support advisors there is absolutely no progress towards resolving all the glitches Mojave has introduced. Apple is becoming less desirable to me each year. It seems more and more that they are getting too careless and flakey with their software design. (What’s next, malware susceptibility like Windows?) Mojave is the pinnacle of their retarded ideas of what people desire, as judging from my own experience and the quantity of people online wanting to revert back to anything earlier than Mojave. I think it’s safe to say that Mojave SUCKS.

    • Lucy M.

      07/28/2019 at 7:18 am

      I thank all of you for airing your issues with Mojave. I was offered the upgrade but chose to wait and see what issues might come to light and way too many have. I only bought this new iMac barely 2 years ago and I am happy with the software. I learned a valuable lesson with that Vintage Mac because I was downloading all the new software to my vintage iMac which I purchased in 2010 and the software downloaded stressed my vintage mac so much that I noticed it was heating up and so I shut it down and went to an independent Apple dealer to have the problem diagnosed. The tech who replaced the fan told me that my vintage Mac was not capable of handling all those upgrades despite the Apple techs assurances that it could and I was lucky that I rested my arm along the top of the iMac to shut the window next to it and realized it was as hot as hell. He said that what saved it was the cool air coming in the window and my timely shutdown or it would have overheated and I would have a dead vintage iMac to use as a very large paperweight. Having, in the past, purchased a number of different hardware products which came with Microsoft’s latest Windows already installed and having to buy upgrades to fix the problems that came with the “new” Window software products I was truly sick of all the issues that came with each upgrade in Windows. If you can’t put out a software package that has no bugs than you are just doing it for the Benjamins and the plan all along is to milk the customer dry to get all of the “fixes” required. I was assured that Apple would never follow Microsoft’s practice. I was happy for 10 years until I was told I needed these upgrades or I wouldn’t be able to connect to newer software. I figure 10 years is a good run for any hardware. I’ve only averaged 3 with various computers before the units started having issues that weren’t related to the software. Now Apple is following Microsoft’s lead and is creating upgrades that have lots of issues and no apparent fixes, but let’s wait and see. I would bet they will come out with a fix and we will be required to purchase it. If Steve Jobs were still alive this kind of crap would not be happening. Now it is the stockholders who are calling the shots, and we’re going to foot the bill. The tech who repaired my Vintage iMac told me to refuse all upgrades and I could continue to use it for streaming Netflix, until silverlight no longer becomes compatible with the older software, and even for using Elgato’s eyetv should I decide to go back to cable television. He joked with me and said, repeat after me “just say no” whenever they want you to upgrade your vintage Mac and you won’t have any problems. It’s a 27 in screen iMac and I’ve been using it in my bedroom as a TV. I can’t complain, the cost to repair my vintage mac was just under $100 and I can still use it. I will never make that mistake with this one. I know Mac users, you are all honest people and you just got screwed and I’m benefiting from that. We should all get together and demand that they fix all the issues that they created and we will not put up with Microsoft’s business footprint. Thank you for saving me a lot of pain and anxiety, I am not a healthy person and stress just makes my health issues worse.

    • pam sinclaire

      08/03/2019 at 3:50 pm

      Also there’s no facebook link in photos anymore and the 3d option in maps is gone. no globe.

  9. Ric

    05/20/2019 at 2:15 am

    It’s updates like this (and many in the past) that Apple is no longer exciting or appealing!

    It’s more work trying to fix things after an Apple update, not even printers work anymore! What a nightmare :(

  10. steen Jeberg

    05/26/2019 at 11:54 pm

    I tried to update my MacBook Pro from 2013. Now it is locked in the update proces and can’t complete the update. It shuts down again and again. So my advice is – don’t update now..check the internet if your Macbook model needs the update and can do it without problems….

  11. fnaf

    05/27/2019 at 2:29 am

    I also think you should install macOS 10.14.5. It will fit your device

  12. Ken

    06/19/2019 at 8:34 am

    This is a catch 22. Damned if you do, damned if you don’t. I upgraded a few months after Mojave came out and my 27″ iMac retina 5K ended up in the shop for a freaking week. I had customers screaming “when will you up and running?”
    That’s the damned if you do.
    The damned if you don’t is future compatibility issues down the road with everything.

  13. Tomas Walsh

    07/12/2019 at 9:39 pm

    My Macbook Pro has been incredibly slow since “downgrading” to Mojave. I’ve eliminated every possible thing I can locate and I still sit waiting for just about every function. I’ll be reverting to High Sierra very soon.

  14. Bill

    07/19/2019 at 1:29 pm

    A question I would like answered, if “upgrading” from High Sierra (10.13.6), how much hardware will I lose? The last upgrade cost me a scanner and a Wacom tablet. What hardware would this upgrade cost me?

  15. Jim P

    07/26/2019 at 7:53 am

    I’m not doing it. All my apps and devices work well on my iMac as is under High Sierra 10.13.6. Mojave has been having earthquakes… I don’t need one on my desktop.

  16. Vickie

    07/31/2019 at 6:29 am

    Same issue Mojave is causing problems and Apple should know better. You are letting your loyalty decrease and getting the reputation of being just one of those typical software and hardware groups. I have had Macs for years and I mean years! Could only praise their work, now I am not so sure. I might have to start looking for another computer company to work with if this keeps going on. I love my Sierra, the software has not let me down. Putting things in your latest fixes that does not allow the people that invested in your newest software, found it doesn’t work like the previous edition, can’t revert back without cost or newer machine, is NOT THE APPLE WAY at least it wasn’t. Listen to your customers! No one seems to get that any more when running a business!

    • Phil Drane(NZ)

      08/01/2019 at 3:04 pm

      Sorry to read these comments but welcome to my Windows world for the past 20 years so I can empathise, and thank you for your comments because my wife has a MacBook Air and loves it. I am researching the upgrade for her and these comments bring back a flood of Win XP, Win 7 and now Win 10 tears fixes on fixes and ‘undesirable enhancements’ so I won’t be recommending an upgrade until Apple have their act together.
      Perhaps Apple’s issues here are similar to Microsofts – have they handed software development and customer release over to the marketing and programming departments? Sorry to hear so many sad stories.

  17. Pat

    07/31/2019 at 12:34 pm

    I installed it last night and today my computer is useless. Not a happy camper.

  18. Elaine Fisher

    08/01/2019 at 10:46 am

    I upgraded my 2015 MacBook Pro yesterday to Mojave. I also upgraded my 20 MacBook 12 in. The MacBook upgrade appears (so far) to run okay. On the MacBook Pro, I could not get email to work and the internet kept freezing up requiring reboot. I spent the entire day trying to get it to work, based on information on the internet. Today I restored the clone of High Sierra to the MacBook Pro. I have no idea why one system seems to work (crossing fingers) and the other one doesn’t. Also, the MacBook said it needed a Mojave upgrade, but the MacBook Pro didn’t say that. Very frustrated and won’t be upgrading the MacBook Pro to Mojave any time soon

  19. Lee

    08/15/2019 at 10:57 pm

    I have Mojave 10.14.5 on my mac and now my email won’t send. Was on the phone with my ISP, but alas no joy

  20. lynnie

    09/16/2019 at 3:23 am

    I’m dreading the upgrade to Catalina as I know I’ll lose one app that I use a lot and have to use the web based version which means a monthly drain on my pocket and I worry I’ll lose my 2011 MS Office too.

  21. aX

    09/19/2019 at 9:05 pm

    Can I skip OS Mojave and wait for the OS Catalina update instead?

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