app store update page looks strange

So are you saying that after reinstalling the original OS in recovery mode, you still have no way to update the OS via the App store? Could you please clarify, as I am in the same situation. Just came into work office after a year away due to pandemic lockdown only to discover that my 2015 iMac running High Sierra cannot run Office 365 etc. until I get this Mac up to at least Catalina. It also appears that downloading old installers from Apple via this site is also broken in High Sierra now.

Oh man!!! More posts???

With all the unnecessary posts in this topic - I HAVE to unfortunately unsubscribe from the topic.

Temporary solutions that have already been provided don’t need to be perpetually repeated. What info there’s been — its been provided, Thats the purpose & function of a forum string.

There’s nothing going to be done or changed until Apple does something, - which may never come.

Hopefully… if and when Apple ever provides a real solution - someone will have posted it here for other users to find, but there’s no real answer herein as of yet

Good luck all.

…moving on

— unsubscribed

still does not reflect profesionally on apple to leave old, still good macs in the dust by not fixen a simple css issue that lierally takes just 30 seconds to fix on apple's side. As I am one of those users with a 2010 27'' iMac, for which of course High Sierra is the last OS Apple supports on that specific model, I since use that iMac primarily in Target Display Mode* with a new M1 MacBook Air, but still, I need to access stuff on that mac from time to time for say legacy 32 bit software for one.

It would be just a simple matter for apple just to fix this css/ssl issue esp. if app store devs still provide a plethora of software that runs on it. Also, even though High Sierra is comparatively old with say the Big Sur on my M1 mac, it still is quite capable of function and for most users, no less secure than todays OS.

So Apple really need to fix their sh--.

*NB: TDM icw Thunderbolt 3 Macs has been a hot issue as well (on here and elsewhere), which Apple still has failed to address, but suffice it to say if you have an {i}Mac with Thunderbolt you want to use as a target display for another Thunderbolt mac, you can't {in most cases} because of limitations of the DisplayPort and HDMI protocols running over Thunderbolt. Only a small subset of such macs that shipped with Thunderbolt gen 1 and gen 2 might work.

Now IF, and I stress IF, you like me are lucky to still own a pre-Thunderbolt-era Mac with built-in display that either uses Mini DVI or mDisplayPort as is the case with my 2010 iMac, then yes, you can indeed use the screen as a display for other macs, even other computers, as it would present itself just as a vanilla generic DisplayPort monitor with digital audio path (in the case of mDP) to any computer upon activating TDM from the active copy of MacOS on that mac.

So keep that mac arround if you ever switch to a macbook :_)

DaveFlash -

I thought I was going to unsubscribe to this thing. Oh well. I agree with your comment regarding Apple. There was a time you could keep repeatedly buying AppleCare for your Mac. I think that alone goes to show the difference in support then and now for their products. I hate to say this as kind of a scapegoat statement... "but ever since the loss of Steve...." and... we can all "fill in the blank" with our own experience.

Even in a skewed way - your post was actually more relative to the topic than others. But anyway... it was a good reminder of what we can actually STILL do with our... what is referred to as our older macs, EVEN with High Sierra, which is all relative.

Case in point - I still have a fully functioning MacSE, and a color classic mac which I upgraded it to a G4! They're neatly packed in their padded classic cases and haven't been used in years, but I KNOW I could pull them out and connect them both to our network and they'd be able to communicate with other Macs - even with their older OS's.

My former daily work machine seemed that it went down in value quick. A now older Mac (mid-2011) 27" iMac i7 3.4Ghz, 1tb HD with 32gigs RAM. It runs High Sierra, ability to run 32 & 64bit, able to run software of it's time (AND NEW) just fine. 4- USB 2.0 / 1- FW800 / AirPort Extreme / Gigabit Ethernet, and an SDXC card slot. With mine - it has dual Thunderbolt ports, which are backwards compatible with Mini DisplayPort supporting up to a 30" display. Thunderbolt, of course also supports other peripherals providing up to 10 Gbps - both directions. So, I think it's still a formidable adversary, although any resale value price would sadly say different, but I still use it. :-)

We still have several Mac Mini's running as MediaMacs and such, as well as a daily office Mini running Catalina, which by the way... can no longer be upgraded either. DANG. I'll wait a couple of generations to get any Apple 'M' processor. I like new and flashy, but I'm not ditching perfectly good running Macs. ;-)

OH! ... and my little green icon /avatar. Yea... I still have a couple of 2100's and heavily used mine up until about 10 years ago. Sadly now... hibernating in their boxes.

[edit - added Newton 2100]

Yes, I'm having the same issue as "joeMich" described in his "Apr 6, 2021 12:27 AM comments".....I'm reluctant to do any updates with a screen that looks like a hacker's way to access my computer 8 - /

This article titled Apple Has No Written Policy sheds some light on security updates.

Thanks everybody for tips that were interesting and useful,

https://www.howtogeek.com/350901/which-releases-of-macos-are-supported-with-security-updates/

Ok the page is back in its normal shape even on El Capitan. But that does not mean all is solved. The question is still: when do all updates stop - it would be great if there were some publications by Apple about this. On the good side: my laptop is proof that it is possible to work well on an 11 year old laptop. For now at least. There are articles f.i.in How to Geek about how the last 3 versions will be supported and more. The future is quite uncertain.

To answer you @Harry V: No more Security Updates for us (MBP Early 2011) but AppStore updates will probably work for a while I think. I could be wrong however but I had some Mavericks machines still updating their apps not so long ago…

That was clear to me already, yesterday a little app update (VPN); I still believe a machine like this should live longer... well it's still purring away using Firefox and Chrome, and it's even rather quick! Thanks for writing patrice289

Excellent. Good to know exactly what the deal was. I had hypothesized a missing CSS file, mixed content (http/https) restriction, and/or a content security policy (CSP) restriction.

I think I just heard a cloud deity thunder, "Apple, never let this happen again or I shall smite thee!"

I managed to set up a call with Apple Support trough the Get Support website, they should call me in a few minutes, I'll keep you posted.

Also reported this issue with 10.13.6 to Apple via the method @Xfox mentioned above.

I've found more threads like this one, for instance: https://discussions.apple.com/thread/252643586?page=1

Groeten terug uit Holland, Harry. ;-)