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Apple today released macOS High Sierra 10.13.3, the third major update to the macOS High Sierra operating system available for Apple's Macs. macOS High Sierra 10.13.3 comes over a month after the release of macOS High Sierra 10.13.2 and a little over a week after a macOS High Sierra 10.13.2 supplemental update which brought a fix for the Spectre vulnerability.

macOS High Sierra 10.13.2 can be downloaded directly from the Mac App Store or through the Software Update function in the Mac App Store on all compatible Macs that are already running macOS High Sierra.

macoshighsierra10133-800x464.jpg

No major outward-facing changes were discovered in macOS High Sierra 10.13.3 during the beta testing period, but according to Apple's release notes, it brings security and feature improvements.

The update offers additional fixes for the Spectre and Meltdown vulnerabilities that were discovered and publicized in early January and initially fixed in macOS High Sierra 10.13.2.

We also know that the update fixes a bug that allowed the App Store menu in System Preferences to be unlocked with any password. Aside from those changes, Apple's release notes say that the update "addresses an issue that could cause Messages conversations to be temporarily listed out of order."

For more information on the macOS High Sierra operating system, make sure to check out our dedicated macOS High Sierra roundup.

Article Link: Apple Releases macOS High Sierra 10.13.3 With Fix for Messages Bug
 
I hope this fixes the white bar on the top of the screen when viewing images in Photos.app in full screen mode.

That's really the only High Sierra bug left that's annoying the snot out of me.
 
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I completely wiped my computer after a big crash, so maybe that's it, but has anyone found Messages is just terrible now? Can't space-bar to preview, can't send images. No clue what's happening, but maybe it's the beta.
 
As always they fix this and break something else... That is the motto.

Apple if you read this, please fix Preview to render PDF documents properly. I hope I'm not asking for something impossible...
 
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1.97GB - says it'll take 4 mins to download on my Macbook Air 11 (2015). No iOS update as of yet.
 
Praying for a fix to the LG 5K issue. Just got my laptop back from Apple (logic board replacement) and it froze the very same day. Nothing installed, factor fresh OS.
 
As always they fix this and break something else... That is the motto.

Apple if you read this, please fix Preview to render PDF documents properly. I hope I'm not asking for something impossible...
Sorry, what's the issue?
 
I wonder if this update will fix the trackpad on my 2017 15" MbP which seems to become unresponsive (and not clicking) sometimes when waking from sleep. Of course, it could be a hardware issue...
 
In the future, to update, open a Terminal, then:

sudo softwareupdate -i -a

And enter your password. When it's done, type "reboot". It's much faster than using the App Store app, and does the same thing.

Thank you - I appreciate it :D Will do!
 
I wonder if this update will fix the trackpad on my 2017 15" MbP which seems to become unresponsive (and not clicking) sometimes when waking from sleep. Of course, it could be a hardware issue...
Same problem here. 2017 mbp. No fix in the last beta ‍♂️
 
What Mac do you have?

Air 11 - 2015 (SSD). Just thought it was funny that after the reboot, and at the Apple logo the installation bar bam went 3/4th done then put out an estimated time of 39 minutes. 10 mins later it says 11 mins remaining - bar still at 3/4th position.
 
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