Thursday, September 24, 2020

macOS 10.15.7

Apple (also: MacRumors, Mr. Macintosh, Howard Oakley):

macOS Catalina 10.15.7 provides important security updates and bug fixes for your Mac.

• Resolves an issue where macOS would not automatically connect to Wi-Fi networks
• Fixes an issue that could prevent files syncing through iCloud Drive
• Addresses a graphic issue that may occur on iMac (Retina 5K, 27-inch, 2020) with Radeon Pro 5700 XT

I have not yet heard anything about whether this fixes the remaining Mail data loss bug (dragging and dropping IMAP—and possibly Exchange—messages deletes them) that remains in macOS 10.15.6.


Update (2020-09-28): Howard Oakley:

Among the bundled apps, only Mail has changed, by a small build increment from 3608. to 3608. Accompanying that are similarly small increments in many of Mail’s support files, including the MailMigrator plugin, private Email frameworks, and Mail and IMAP private frameworks. These are strong evidence that this update attempts to fix the remaining bug(s) in Mail, although Apple hasn’t mentioned that in its release notes. Let’s hope it succeeds.

Reader TheGeneralist says that the IMAP bug is still present.

Mr. Macintosh:

A few reports are coming in that the 10.15.7 update is causing problems with the accountsd (sync) process. After the 10.15.7 update, accountsd runs up to 400% CPU viewable in Activity Monitor. Only seems to happen with users that are signed into iCloud Drive Mail or Cal.

Xavi Moll:

Folks, it’s Monday morning and you’ll probably see Catalina 10.15.7 appear as an update. Don’t install it, it seems to cause issues with the Keychain that make the entire system crawl to death.

It seems that signing out of iCloud, rebooting and signing back in fixes the issue, at least for now 🤷‍♂️

Matthias Gansrigler:

I experienced this on my MacBook Pro (mid-2018). I let it ran for a while, force-quit accountsd (which didn’t help), let it run some more, then restarted, now it works as usual.

Update (2020-10-01): Joe Rossignol:

While this [accountsd] issue has popped up occasionally over the years, there has been a noticeable uptick in complaints across the Apple Support Communities, MacRumors Forums, Twitter, Reddit, Stack Exchange, and elsewhere since the release of macOS Catalina version 10.15.7, with users attempting to troubleshoot the issue.


Affected users have offered a wide range of potential solutions, but your mileage may vary.

Mr. Macintosh:

I’ve added 2 new fixes in the workarounds section below. One kills the process and recreates the .sqlite database. The other was to remove Find My Mac then re enable it.

Jason Sims:

In case it helps someone, macOS 10.15.7 update broke Bluetooth for me. Reboot/zap PRAM didn’t help. Had to trash Bluetooth plist (~/Library/Preferences/ByHost/…) and log out to fix it.

Peter N Lewis:

After the latest software update to 10.15.17, my Mac is basically sludge, with kernel_task taking 970% CPU. Sigh. It’s essentially unusable. I guess I’ll just go do something else and hope it eventually clears up. If not, shift-boot will be the next stop.

The recent Mojave security update has also caused problems and was pulled.

Update (2020-10-02): Mr. Macintosh:

Apple has just released a Mojave Supplemental Update that address all the problems that the previous Safari 14.0 and 2020-005 Security Updates!

3 Comments RSS · Twitter

Good news. It seems some attempts have indeed been made to fix Mail’s issues:

I definitely have the accountsd issue and nothing suggested at fixed the issue. It always comes back. Great job Apple!

@Jiri Me too. MBP “mail server” that I use with Michael’s Spamsieve blackscreened today, and I had to hard-power it down.

When I rebooted, the temperature sensors were pegged at 100 degrees celsius (last reading written to Turbo Boost Switcher Pro before the freeze) so Apple really needs to fix this before they start damaging hardware. (IIRC Max Operating Temp is 95 degrees Celsius for my older i7)

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