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Updated Many Mac users today found, to their surprise, they are unable to print to their HP Inc printers. This is due to a code-signing snafu affecting macOS Catalina (version 10.15) and Mojave (10.14), specifically. H&R Block Deluxe + State Tax Software, Homeowners and Investors, Mac Download Minimum System Requirements Operating System: Mac OS X 10.9 Mavericks, Mac OS Catalina 10.15. Under the pop-up menu, you’ll see Select the OS X installer. (macOS used to be called OS X.) If you have only the Catalina installer on your Mac, Install Disk Creator will automatically.

1. Discontent can be attributed in part to Catalina's removal of support for 32-bit apps, necessary for a possible future transition away from Intel. But there's more to it than that. Experienced macOS users tend to advise waiting a few months for updates and bug fixes before installing a major operating system revision.
2. We could use an extra Mac developer to work on these issues. The provided download contains an Application Bundle (for the i386 architecture) built for Mac OS X 10.6 (and later), bundling most Code::Blocks plugins.

Updated Many Mac users today found, to their surprise, they are unable to print to their HP Inc printers.

This is due to a code-signing snafu affecting macOS Catalina (version 10.15) and Mojave (10.14), specifically. HP's printer driver software is cryptographically signed with a certificate that macOS uses to determine whether the application is legit and can be trusted. However, that certificate was today revoked through an XProtect update, causing the software to be rejected by Macs.

XProtect is the mechanism Apple uses to inform Macs to no longer trust and run certain programs, and it does this by revoking their code-signing certificates. There is no central database of certs cancelled by XProtect, there's one for each OS version it seems, and Catalina and Mojave were selected in particular. Apple chose to revoke the HP driver cert, or perhaps was asked to do so by HP.

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In any case, HP's driver software no longer works on those two particular operating system flavors. Users are told when trying to print, for instance, that HP's application 'will damage your computer,' and are given the option to run it anyway or send it to the trash. Trying to continue just loops you back round to the error message, with no work done. Punters are also encouraged to report this 'malware' to Apple.

Unofficial workarounds for now include using AirPrint to an HP printer, or uninstalling the HP software and using a generic PostScript driver.

A Reg reader who tipped us off about the blunder told us he was able to jerry rig some IPP connectivity to get an older device to print: 'We had a handful of printers where macOS would print into the ether. Windows had no problem. I found some IPP trickery on macOS Catalina worked on an older HP4650.'

We had a handful of printers where macOS would print into the ether. Windows had no problem

Complaints from punters are building up on the Apple and HP support forums.

'Trying to open Printer Utility on MacOS 10.15.7 and I get a crash dump every time saying 'Code Signature Invalid' for the binary /Library/Printers/hp/Utilities/HP Utility.app/Contents/MacOS/HP Utility,' said one netizen.

'Yes, my Deskjet F4140 abruptly stopped working with both my Mac mini desktop AND my partner's AirBook,' complained another. 'The AirBook keeps insisting it's malware (it's not), while my desktop says the certificate has expired. Suddenly, HP and Apple are NOT playing well together! I've redownloaded and reinstalled the printer software TWICE now but nothing has changed, just the same message about HP Utility now missing. Our jobs depend on this printer, HP.'

Thomas Reed, director of Mac and mobile at Malwarebytes, tweeted to say his users were up in arms at the tech breakdown: 'We're seeing a significant influx of support cases where users are seeing macOS identify what appear to be legit processes as malware.'

Mac blogger Howard Oakley has some more background, here. 'You’re seeing that [error] message because macOS is checking the signature on your HP printer software, and being told that its signing certificate has been revoked,' he observed.

Amazon's Music desktop app is also, weirdly enough, no longer working, either, it's reported.

Spokespeople for HP and Amazon were not available for immediate comment. Apple declined to comment. ®

Updated to add

The Register understands from sources familiar with the matter that HP Inc asked Apple to revoke its printer driver code-signing certificates. It appears this request backfired as it left users unable to print. A HP Inc spokesperson told us on Friday night:

We unintentionally revoked credentials on some older versions of Mac drivers. This caused a temporary disruption for those customers and we are working with Apple to restore the drivers. In the meantime, we recommend users experiencing this problem to uninstall the HP driver and use the native AirPrint driver to print to their printer.

Comment Amid Apple's attempt to fend off criticism for its removal, restoration, and re-removal of an app used by pro-democracy protesters in Hong Kong, the company is also facing particularly voluble criticism from users of its latest desktop operating system, macOS Catalina.

Since at least 2015, developers and other technically-savvy folk have fretted that Apple's software quality isn't what it could be. The gripes reached Apple executives and by 2018, there were reports that company technical leaders were focused on improving quality.

To judge by the reception of macOS Catalina, aka macOS 10.15, it appears Apple's quality push was more aspirational than actual.

In two posts this week, macOS developer Tyler Hall, from Nashville, Tennessee, savaged Apple's macOS Catalina update, likening it to the reviled Windows Vista and subsequently detailing its many alleged faults.

The Register contacted Hall to discuss his concerns, but he declined to comment further. '[T]his has all blown up way more than I ever intended,' he said in an email. 'And I’ve heard personally from folks inside Apple who I’m friends with and others that I just know by reputation, that my comments were hurtful. I’d rather not say anything else.'

The Register also asked Apple whether the company would comment on how macOS Catalina has been received and whether user dissatisfaction differed from previous releases. But Apple – and this may not come as a surprise – has not responded.

To some extent, dissatisfied users should be expected with any software release. And there's no shortage of these. Apple's macOS Catalina forum is currently full of people reporting problems, and criticizing Apple's quality assurance process. Discontent can be attributed in part to Catalina's removal of support for 32-bit apps, necessary for a possible future transition away from Intel. But there's more to it than that.

Experienced macOS users tend to advise waiting a few months for updates and bug fixes before installing a major operating system revision. Even so, macOS Catalina appears to be worse than people's general low expectations for software.

Among those discussing Hall's posts on Hacker News, there's quite a bit of support for his concerns.

• 'I'm sort of surprised that they actually released with the state it is currently in.'

• 'This year all their OSes seem to be riddled with issues at release. iOS 13.0 was so bad they released 13.1 in less than 5 days, but even now many things are still hit and miss (with 13.2 in beta). watchOS 6.0 is also still pretty bad and not yet fixed (with 6.1 in beta). macOS 10.15 GM seems pretty buggy.'

Sentiment on Twitter isn't much better:

Download Mac Os Catalina On Windows 10

macOS Catalina is a trash fire right now. I’m not updating a single machine yet. Definitely not production ones (never do this), but I’m not even gonna do my laptops yet.

— Quinn Nelson (@SnazzyQ) October 9, 2019

Then there are theposts that purport to be from Apple employees and describe the company's internal disarray and lack of communication. The Register is unable to verify who these people might be, but other people posting to the thread confirm that Apple employees they've known have raised similar concerns.

In particular, these supposed employees raise the same issue cited by Hall, that Apple's marketing group overrides engineering concerns.

As Hall argues, 'Apple’s insistence on their annual, big-splash release cycle is fundamentally breaking engineering.'

Michael Tsai, a macOS software developer who blogged about Apple's software quality problems back in 2015, told The Register in an email that he thought Hall's critique is mostly fair.

MacOS wakes to a bright Catalina sunrise – and broken Adobe apps

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In Twitter message, developer Steve Troughton-Smith said he didn't have much to say about Catalina. 'It's been in a pretty stable state for a while, as far as I know,' he said, noting that much of the criticism of the operating system follow from its security and privacy features, which he's disabled on his machine.

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'I don't think it was premature, I think it's been in roughly the same state for a while,' he said. 'People were running into problems syncing their Reminders to Mojave from iOS 13 because of the new Reminds app, so it wouldn't surprise me if Apple accelerated Catalina by a couple weeks just to make that problem go away.'

Even so, Troughton-Smith agreed that Apple's software quality recently has been uneven.

'I think they made last year a little better at the expense of this year,' he said. 'They've been having software quality issues since at least iOS 7 and the switch to [Craig] Federighi.'

'I think iOS 8, 11, and now 13 have been breaking points. iOS 13 has been the first time the OS didn't make it over the line for the iPhone release. There is a pattern here that may be due to scale/complexity, or management style, but it seems balanced on a knife edge.' ®

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