Apple today released a new version of macOS High Sierra 10.13.3, which comes approximately one month after the first version of macOS High Sierra 10.13.3, an update that offered fixes for the Meltdown and Spectre vulnerabilities discovered in early January.

The new macOS High Sierra update 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.

macOS High Sierra
Today's update addresses a bug that causes apps like Messages to crash due to an inability to render a character in the Indian language Telugu. When sent or received, the character in question can cause an app like Messages or Safari to freeze up and become unresponsive.

There's also a separate macOS High Sierra 10.13.13 Supplemental Update for iMac Pros, which is designed to fix the Telugu bug on those machines.

Prior to today's update, the only fix in an app like Messages was to delete the entire conversation containing the buggy character. The update also impacted iOS 11.2.5, and Apple also released a new iOS 11.2.6 update to fix it.

Apple previously addressed the Telugu character bug in iOS 11.3 and macOS 10.13.4, but those updates are still in beta testing and won't be released until the spring. Apple last week promised a minor update to fix the bugs in the meantime.

Update: Apple released a second supplementary update for the iMac Pro in late February as iMac Pro users were not able to install the update.

Related Forum: macOS High Sierra

Top Rated Comments

nt5672 Avatar
86 months ago
I can imagine that fix will take some time, even if it's high priority.
Yep, Apple already had everyone switched back over to work on animoji AR for the next iOS release.
Score: 9 Votes (Like | Disagree)
Populus Avatar
86 months ago
I can imagine that fix will take some time, even if it's high priority.
i just hope APFS will be polished enough with the launch of 10.14, because as you said, the file system is a high priority part of the operating system.

It would be nice to have it well optimized for mechanical hard drives and fusion drives as well.
Score: 5 Votes (Like | Disagree)
LincolnsiPod Avatar
86 months ago
High Sierra has been the literal worst software experience I've had with Apple by far.

Messages ARE still out of order and has persisted for months! WTF
Score: 4 Votes (Like | Disagree)
springsup Avatar
86 months ago
I can imagine that fix will take some time, even if it's high priority.
Probably not; as I mentioned in the dedicated thread on that topic, it's a silent error which should be a loud error. Not to trivialise the issue, but as potential filesystem bugs go, that's a breeze.

i just hope APFS will be polished enough with the launch of 10.14, because as you said, the file system is a high priority part of the operating system.

It would be nice to have it well optimized for mechanical hard drives and fusion drives as well.
I think you are overplaying a single, minor bug. APFS is fine - there are hundreds of millions of people who have been using APFS for their critical data-storage needs for about a year, and we're not hearing about widespread data-corruption or anything.

The one thing I have noticed, is that these minor bugs are getting much more publicity than they used to. I don't think Apple's software has gotten worse overall; there are always better and less-excellent releases of any software. It's just that every minor bug appears to be an urgent catastrophe for some people. You have never used a piece of software with no bugs, I promise.
Score: 4 Votes (Like | Disagree)
shuttersny Avatar
86 months ago
Over two hours now and the update still hasn't finished installing. WTF?
This was pretty much my experieince
I did a forced restart
Restored machine from weekly clone and automatic hourly Time Machine backups
I won't go near this supplemental update till I see some remedy
I've used Macs since 1983
Do regular "maintenance"
First "update" that I had any issue with
Does this say something?
Score: 2 Votes (Like | Disagree)
MDA84 Avatar
86 months ago
Last time my bran new MacBook 15 2017 updates itself last month it couldn’t restart!!! Saying the update is corrupted or something, spent hours to factory reset my Mac OS system. So scary it was never happening with windows 10 or 8... Apple seems to have been busy with maximizing the profit and build the ring and left their promises aside. See the homepod
[doublepost=1519098457][/doublepost]
I think I will let some other people install this and see how it turns out for them before installing it on my machines. I know it is a very minor update, however, with the way Apple QC has been...well, that speaks for itself.

:apple:
Perfectly right... Apple QC these days is
Frightening really. My brand new MacBook 2015 crashed last month on automatic update. I restarted the laptop few days after without knowing the system updated and the system was lost!! Had to factory reset MacOS!!
For me they really left over the Mac for
Their Animoji AR and other. Really sad
Score: 2 Votes (Like | Disagree)

Popular Stories

Generic iOS 18 Feature Real Mock

iOS 18 Available Today With These 8 New Features For Your iPhone

Sunday September 15, 2024 10:09 am PDT by
Following over three months of beta testing, iOS 18 will finally be widely released to the public this Monday, September 16. The update should be available to install starting at around 10 a.m. Pacific Time (1 p.m. Eastern Time) in the Settings app under General → Software Update on the iPhone XS and newer. Below, we have highlighted eight key new features included in iOS 18, and Apple...
iOS 18 Public Beta Thumb 1

Here's When iOS 18 Rolls Out Today in Every Time Zone

Monday September 16, 2024 3:56 am PDT by
It's that time of year again. Apple is about to release iOS 18, which promises to bring a range of new features and improvements to iPhones worldwide. It's Apple's biggest software update of the year, and the company is expected to release it sometime today – Monday, September 16. Based on past releases, the update is likely to drop at around 10:00 a.m. Pacific Time/1:00 p.m. Eastern...
Beyond iPhone 13 Better Blue Face ID Single Camera Hole

10 Reasons to Wait for Next Year's iPhone 17

Friday September 13, 2024 2:40 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models simultaneously, which is why we sometimes get rumored feature leaks so far ahead of launch. The iPhone 17 series is no different – already we have some idea of what to expect from Apple's 2025 smartphone lineup. If you plan to skip...
apple silicon mac lineup wwdc 2022 feature purple

M4 Macs, New iPad Mini, and iPad 11 Expected at Upcoming Apple Event

Sunday September 15, 2024 5:29 am PDT by
Apple will likely hold another event in October this year to announce new Macs and iPads. If so, it would be the fourth time in the last five years that Apple has held an event in October. Last year, Apple held a virtual event on Monday, October 30 to announce new MacBook Pro and iMac models with the M3 series of chips. In his Power On newsletter today, Bloomberg's Mark Gurman reiterated...
16 pro

iPhone 16 Pro Demand Has Been Lower Than Expected, Analyst Says

Sunday September 15, 2024 3:58 pm PDT by
Apple analyst Ming-Chi Kuo today said demand for the iPhone 16 Pro and iPhone 16 Pro Max has been "lower than expected" since the devices became available to pre-order in the U.S. and dozens of other countries on Friday. Kuo said his data is based on a "supply chain survey" and shipping estimates listed on Apple's online store. Kuo estimated that sales of all four iPhone 16 models reached...
iphone 16 pro apple intelligence

Apple Intelligence Features Expected to Roll Out in This Order Between iOS 18.1 and iOS 18.4

Friday September 13, 2024 1:01 pm PDT by
iOS 18 will be released to the public on Monday, but the first Apple Intelligence features will not be available until iOS 18.1 is released in October. Apple Intelligence features will continue to roll out in iOS 18.2 and beyond, with the expected roadmap outlined below per Apple's website and rumors. Apple Intelligence requires an iPhone 15 Pro model or any iPhone 16 model, and it will...