Apple Releases macOS Catalina 10.15.6 Supplemental Update With Virtualization Bug Fix

Whose heads? The programmer who wrote the code? An individual software tester who failed to catch the bug? The person who wrote the test plan? The QA manager who supervised the testing? The QA director?

How about the Product Manager who signed off on the release? The director of software engineering? The VP of Software?

I think an argument can be made that something is off with Apple software QA. Possible fixes might be to decrease the release pace, to leave it the same but decrease the amount of features, to hire more QA, etc. Given that it's been years, maybe it is indeed time to fire the director either of QA or of SEng. (Maybe it's time to let Craig go.)

Or how about the executives who decided to allocate only so many resources to software testing, while maintaining pressure to meet an ambitious feature release schedule?

Maybe.

Don’t get me wrong. As someone who used to run software QA for a living, I’m inclined to think that people should be serving jail time for some of the software bugs I keep reading about, but actually deciding who to fire or hang or sacrifice to the Red God isn’t entirely straightforward, nor perhaps entirely helpful.

Yup.
 
Yeah, I think this weill be the final update. Reminds me of an old Steve Jobs line about Blu-ray being a "bag o hurt."

I think Tim Cook wants to get away from this dumpster fire as quickly as possible and move onto Big Sur and Apple Silicon and pretend it didn't happen. Similar to how they moved quickly on IOS to get rid of 32 bit apps, pretend you never had them or needed them.

Absolutely, Catalina is a bag of hurt.

I have multiple new 15/16 inch MBPs, all with Catalina latest public release, all with only Apple Kexts, all used for different purposes (Xcode, blender, Office)...

Each of them has kernel panic randomly during shutdown with the ****ing "watchdogs" error.

Mess.
 
Jesus. Give it a rest. Both of you. Nobody cares. I’m reading through this thread trying to find salient info about bug fixes, not listen to your rants about whether people should be fired or not. Hopefully a moderator will come in and delete all of these (and this message as well). Thank you.

Maybe, but on the other hand maybe others do care.

The problem here is not that people should be fired (they should, and it should probably be management), it is to express the deep concern that these problems have gone on far too long. It is to express that people are getting tired of these high level bugs being released repeatably. These comments are expressing frustration at Apple seeming to not care as much as they should about quality or not allocating enough resources for quality or development.

But most importantly, it is also about the lack of other outlets to express this frustration. So while you may be happy to put up with the poor level of performance from Apple, others that have been around for awhile are not.
 
guys.. not sure if someone already reported this but after this upgrade my excel has started to crash. Any way to remove this supplemental upgrade ?
 
Yeah, I think this weill be the final update. Reminds me of an old Steve Jobs line about Blu-ray being a "bag o hurt."

I think Tim Cook wants to get away from this dumpster fire as quickly as possible and move onto Big Sur and Apple Silicon and pretend it didn't happen. Similar to how they moved quickly on IOS to get rid of 32 bit apps, pretend you never had them or needed them.

Here's the problem with this line of thinking. A lot of same source code with the same bugs forms the basis for Big Sur and Apple silicon. Sure there will be some new code to take advantage of Apple Silicon, but with Apple's history lately, we can be pretty sure it will be rushed to market with it's own bugs. I am not expecting any better software quality because at least right now, software quality seems to have left Apple's DNA.
 
19G73 (10.15.6):
Darwin Kernel Version 19.6.0: Sun Jul 5 00:43:10 PDT 2020; root:xnu-6153.141.1~9/RELEASE_X86_64
19G2021 (10.15.6 w/supplemental):
Darwin Kernel Version 19.6.0: Thu Jun 18 20:49:00 PDT 2020; root:xnu-6153.141.1~1/RELEASE_X86_64
Same Kernel Version, but the most recent is backdated. Can anyone comment on how this is possible?
 
Will this release eventually be integrated into a combo update?

I just now tried installing the macOS 10.15.6 Combo Update on Apple's website. Prior to that I checked the 10.15.6 build number on my Mac and it was 19G73. After running the 10.15.6 Combo Update installer that I downloaded today, it didn't seem to install anything and my desktop quickly reappeared. I then checked the build number and it was the same: 19G73. This leads me to believe that, at least at the time that I dowloaded the macOS 10.15.6 Combo Update, which was today within the past hour, the Supplemental Update was not integrated into it.
 
I just now tried installing the macOS 10.15.6 Combo Update on Apple's website. Prior to that I checked the 10.15.6 build number on my Mac and it was 19G73. After running the 10.15.6 Combo Update installer that I downloaded today, it didn't seem to install anything and my desktop quickly reappeared. I then checked the build number and it was the same: 19G73. This leads me to believe that, at least at the time that I dowloaded the macOS 10.15.6 Combo Update, which was today within the past hour, the Supplemental Update was not integrated into it.

Thanks for checking and posting about it!

Makes me wonder about this particular update… As I understand, Apple typically releases the combo update not too long after the smaller update (the delta?). I guess the kernel rollback involved in this supplemental update makes it more challenging to repackage this particular combo update?

In the Downloads section of Apple's Support page, the 10.5.6 Combo Update still has a time stamp of July 15. Makes me wonder if they'll replace that entry or make a new one.
 
what the hell is happening ? Every supplemental update i install...everytime my wallpaper boot is changing to the original Catalina one. Will a combo of 10.5.6 install fix the issue, or...?
 
Last edited:
what the hell is happening ? Every supplemental update i install...everytime my wallpaper boot is changing to the original Catalina one. Will a combo of 10.5.6 install fix the issue, or...?
Yes, installing a software update will continue to correctly replace system files that you might have randomly changed.
 
In the Downloads section of Apple's Support page, the 10.5.6 Combo Update still has a time stamp of July 15. Makes me wonder if they'll replace that entry or make a new one.
They won't do either. Supplemental updates are not re-rolled into a prior combo update. Depending on what they are, they *may* be rolled into an updated full installer.
 
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