Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I tried Catalina a few weeks ago and experienced too many bugs, freeze ups and "glitches" I never had while on Mojave. I'm not running any 32 bit apps, so that isn't in the equation. My 27" late 2013 iMac will be staying on Mojave for the duration. Mojave runs real well on my machine.

I plan to stay on Mojave. I like Big Sur but it has one small issue that bothers me. I would consider upgrading some hardware to Big Sur if I can get 2.5 GB Ethernet working in my home.
 
You are jumping to conclusion way too soon. Macs can be very picky and demanding. Recently I learned that the RAM modules that work perfectly well in a Mid 2012 MBP are as you put it "destroying" the Late 2012 27" iMac by sending it in a constant reboot loop. This is despite the fact that the RAM modules are manufactured by ELPIDA and specs are matching to the letter original RAM specs of the iMac. So with what I know now, RAM soldered to the logic board makes a LOT of sense.
I believe that with Mavericks memory management has changed a lot and if you ever upgraded RAM in your early 2008 MBP this might be your problem right there. Also your 2008 MBP has a well known issue with GPU which already makes it a ticking time bomb.
You may be correct about RAM and GPU for the early 2008 MBP, the real problem is that Apple approved Mavericks for it without changes to the RAM and GPU.
 
November 2020, almost December, and not the remotest intention of moving *back* to Catalina.

Been a Leopard user 4 years, then Snow Leopard user for 9 years on iMac and MBP, until the lack of software caused me problems with work. I bought an iMac with Mojave in 2019, then "upgraded" to Catalina, and all of a sudden I was using an overly crappy machine. Slow, and I mean it. S-L-O-W, crashing on odd days and kernel panicking on even days, infinite bugs and freezes, changes in files and settings not saved (which still happens with Mojave, tbh)... basically I ended up using my 2010 MBP again.
All considered, it was a new OS, my bad for installing it right away.

Now I moved back to Mojave, which is a more stable, but I must say that it's no match in performance, stability, and reliability when compared to Snow Leopard. Not to mention speed: my MBP starts up, both system AND software, way faster than this crap. Working with this, be it Mojave or Catalina, is a pain in the arse.

The more I use it, the more I can experience Apple's switch of investments from Mac to iOS. I feel like I'm owning a non-portable fricking iPhone.

I'll be with this for some years, I guess. Meanwhile, I'll just try to learn to use Linux.
 
I have 2 MBP from 2012, a 13" and a 15", both with 8 Gb Ram and SSD HD. I have too a iMac 2019 with 24 Gb Ram. The 3 systems have run Catalina few days ago, and now they are all running Mojave. The stability is not a problem in any of the 3, except on Photos with a panic than can cause crashes of the app when I am 30 minutes long working on photo editing and organizing. Back to Mojave, no more problems, and the iMac is noticeable faster than with Catalina but the two MBP are marginally faster on Mojave.
 
how is this disagreeing?..

components have a life expectancy. SL was back in 2009 and Mavericks was in 2013. Of course a more demanding OS plus aging components will have likely a harder time with upgrades...
If a more demanding OS destroys the motherboard then it should not be approved for upgrade or installation for that computer model.
 
I bought an iMac with Mojave in 2019, then "upgraded" to Catalina, and all of a sudden I was using an overly crappy machine. Slow, and I mean it. S-L-O-W, crashing on odd days and kernel panicking on even days, infinite bugs and freezes, changes in files and settings not saved (which still happens with Mojave, tbh)... basically I ended up using my 2010 MBP again.

As bad as Catalina is it shouldn't be -that- bad. Any chance you got the 21.5"/4K with the 1TB 5400rpm HDD? Those drives haven't played nice with MacOS since Yosemite and run even worse if forced to use APFS for Catalina.

If you do have the 5400rpm HDD get yourself an external USB 3 SSD, reinstall Mojave onto that, and watch software fly.


I was forced to upgrade my 2018 mini to Catalina because of Mini/eGPU/Mojave incompatibilities introduced by Mojave security updates but I do believe by my 2015 Air is going to successfully skip Catalina completely.
 
As bad as Catalina is it shouldn't be -that- bad. Any chance you got the 21.5"/4K with the 1TB 5400rpm HDD? Those drives haven't played nice with MacOS since Yosemite and run even worse if forced to use APFS for Catalina.

If you do have the 5400rpm HDD get yourself an external USB 3 SSD, reinstall Mojave onto that, and watch software fly.


I was forced to upgrade my 2018 mini to Catalina because of Mini/eGPU/Mojave incompatibilities introduced by Mojave security updates but I do believe by my 2015 Air is going to successfully skip Catalina completely.
From my experience Catalina works great on a 7200rpm HDD(APFS).
 
Mojave is responsive as snow leopard therefore im sticking with that osx on the MacBook air for good, until the osx goes bad.
 
  • Like
Reactions: madrich
I think I might try to "update" to Catalina just to see how it is, will definitely make a time machine backup before though.
 
Mojave is responsive as snow leopard therefore im sticking with that osx on the MacBook air for good, until the osx goes bad.

I've tried various OSX versions in virtual machines and i like, in order, Mojave, High Sierra, Big Sur and Catalina. My iMac is on High Sierra because that's the latest version supports. All of my other Macs are on Mojave.
 
  • Like
Reactions: MBAir2010
I'm pretty much going to stay with Mojave till my Mac Pro 5,1 needs a update which I don't really see the need to go on to Catalina nor Big Sur. More junk added and taken away as you progress forward.
 
  • Like
Reactions: Mr Todhunter
I did try Catalina for a few weeks, and then I was offered Big Sur. Did some research and Big Sur’s use of a signed system volume, along with the use of IPSW files to restore M1 Macs was the end of updating for me. That’s just the trend of modern operating system development. I really don’t want a phone; I want a computer. I‘ve also blocked Catalina, Big Sur and Security Updates 2020-003 through 007. Any Security Update since -003 will end the use of “sudo softwareupdate -- ignore“ as a method to block. After -003, you’d have to join a MDM to not get Catalina...

Update (Mar 7, 2021): I have tried Big Sur (clean install) for a few weeks, and it went well and I had no problems with it. Developers can do less and less that is unique. The more I looked at that...I went back to Mojave. Runs a little bit cooler once Spotlight is done indexing.
 
Last edited:
  • Like
Reactions: MBAir2010
I think I might try to "update" to Catalina just to see how it is, will definitely make a time machine backup before though.
I suggest you make a bootable clone to an external SSD and upgrade the latter to Catalina to try it out. That would like your normal internal boot drive in its current state.

I tried every single version of Catalina but always reverted back to my Mojave boot disk with a couple of hours.

It is important to remember that Catalina won't get any better. Sure it will receive occasional security updates over the next 22 months but Apple certainly won't be adding any new features or eradicating any long-standing bugs.

Of course, other side of the coin is that Catalina is relatively stable in its current state unless Apple bungled it like they did with Mojave Security Update 2020-005.
 
I’m thinking about upgrading my only Mac that can run Mojave natively to it. Still on High Sierra. One of my favourite apps has a much better 32-bit app than 64-bit app so at the moment I want to hold off Catalina and later as long as I can.
 
After some installations and tests, I now have Mojave on the 2012 MBP 13", Catalina on the 2012 MBP 15", and BigSur on the 2019 iMac with Fusion Drive. If I want to stay on BS, the iMac demands a change of the internal mechanical HD to a more fast SSD, but actually the boot takes 1 minute, so I could live with it during the time test. I am working with the 3 OSes, without problems. Now I am tempted to downgrade de MBP 13" to High Sierra, and see if it booms the performance. I will see.
 
Interesting, please let us know what your experience is and which OS you prefer.
 
After some installations and tests, I now have Mojave on the 2012 MBP 13", Catalina on the 2012 MBP 15", and BigSur on the 2019 iMac with Fusion Drive. If I want to stay on BS, the iMac demands a change of the internal mechanical HD to a more fast SSD, but actually the boot takes 1 minute, so I could live with it during the time test. I am working with the 3 OSes, without problems. Now I am tempted to downgrade de MBP 13" to High Sierra, and see if it booms the performance. I will see.

I found it easier to test macOS operating systems using virtual machines. I tried El Capitan to Big Sur but skipped Catalina.
 
Interesting, please let us know what your experience is and which OS you prefer.
I found it easier to test macOS operating systems using virtual machines. I tried El Capitan to Big Sur but skipped Catalina.
I am with you, but if you have 3 machines with 3 different specs, they are a cool bank of tests.
 
Mojave is a vast step from high sierra so much that windows 10 synced my ipad and work flow better than high sierra on the macbook air late 2010.
 
I have stuck with Mojave on my Intel Macs as Catalina offered no obvious benefits with the very obvious downside of dropping 32 bit compatibility (some of my apps are still 32 bit).

On my M1 Mac I have Big Sur of course and it's fine and offers the benefits of running iOS apps and widgets that partially replace my still-missed dashboard. It is of course the only option for Apple Silicon anyway.

Catalina just fell between two stools - neither a compelling nor required upgrade.
 
  • Like
Reactions: MBAir2010
On my M1 Mac I have Big Sur of course and it's fine and offers the benefits of running iOS apps and widgets that partially replace my still-missed dashboard. It is of course the only option for Apple Silicon anyway.
my question may be off topic, can big sur and the M1 chip run any ipad app? I have a great drawing app on the ipad that i would love to run on any macbook. And Would that be up to the developer as well?
 
Of course, other side of the coin is that Catalina is relatively stable in its current state unless Apple bungled it like they did with Mojave Security Update 2020-005.
Part of the reason why I chose to update to Catalina was that safari on Mojave was kind of broken. No matter what I was doing, the dGPU would be on because safari was using “significant energy”.
 
Part of the reason why I chose to update to Catalina was that safari on Mojave was kind of broken. No matter what I was doing, the dGPU would be on because safari was using “significant energy”.

I think that I've seen that. I use Firefox 98% of the time and will try Brave, then Safari, then Chrome if Firefox isn't working. I like Brave a lot better than Safari because of all of the add and tracking blocking that they do.
 
Observations:

1) Catalina worked much cooler when I did a clean install and migrated.
2) Microsoft Edge is pretty performant, but I'd only recommend Chrome if you have a Google account.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.