Become a MacRumors Supporter for $25/year with no ads, private forums, and more!


macrumors bot
Original poster
Apr 12, 2001

Apple today seeded the fourth beta of the upcoming macOS Sierra 10.12.2 update to developers, two weeks after releasing the third 10.12.2 beta and a month after the public release of macOS 10.12.1.

macOS Sierra 10.12.2 beta 4 is available for download through the Apple Developer Center or through the software update mechanism in the Mac App Store.


macOS Sierra 10.12.2 includes new emoji, introducing Unicode 9 characters like clown face, selfie, face palm, fox face, owl, shark, butterfly, avocado, pancakes, croissant, bacon and more, plus many profession emoji are available in both male and female genders. Apple has also updated the artwork on many existing emoji, adding detail and design elements to make them look less cartoonish and more realistic.

There are few other outward-facing changes aside from the addition of new emoji, but the 10.12.2 update also likely includes many bug fixes and performance enhancements to address issues that have surfaced since the release of macOS Sierra 10.12.1.

Available since September, macOS Sierra is the latest Mac operating system. It includes Siri support, Apple Pay for the web, Universal Clipboard, Apple Watch auto unlocking, improved iCloud Drive integration, Picture-in-Picture multitasking, and dozens of smaller features that can be found in our macOS Sierra roundup.

Update: macOS Sierra 10.12.2 beta 4 is also available for public beta testers.

Article Link: Apple Seeds Fourth macOS Sierra 10.12.2 Beta to Developers [Updated]


macrumors 6502
Jun 28, 2002
Fix ( or at least explanation ) for thunderbolt 3 incompatibilities on 2016 rMBP?
If not I'm not interested.


Oct 28, 2016
i hope they will fix the iMessage notification when you are on bluetooth and not getting the notification sound when you receive a message

vertical smile

macrumors 603
Sep 23, 2014
I have been holding out upgrading the Mac OS. I am worried about performance and bugs. How has everyone's experience been so far?

I am using the Late 2012 iMac 27" with the upgrade i7 and graphics running El Capitan.

I upgraded the iOS to 10 on my iPad Mini and regret it. Safari is so choppy and there is a lag for everything now.


macrumors regular
Jul 28, 2011
i hope they will fix the iMessage notification when you are on bluetooth and not getting the notification sound when you receive a message
Are you talking about iOS rather than MacOS? (iOS has the same issue; Bluetooth audio devices "steal" the Notification audio automagically, can't configure that behavior.)


macrumors member
Sep 26, 2014
Wow! New emojis! But what about finder bugs? It's difficult to select icons with the keyboard, and if you open a Finder window while Terminal is running a lengthy command, the window doesn't update until the command is complete. Scroll down a window set for Icon Preview (Apple like icon preview so much that they made it like-it-or-not mandatory in open and save dialog boxes) and you can watch the icons update slowly, one by one. There are a number of other ways that macOS behaves as if it were single-threaded. I suppose those things are officially improvements over OS X. The face-palm emojis are more important than getting Finder right.
  • Like
Reactions: PublicEnemy


macrumors 68030
Apr 21, 2012
Got a firmware update on my iMac mid 2011

That's not unusual. There have been firmware updates for every mac os update since the first beta of 10.10.2. This is true of public releases as well as betas. More recently however there have been other associated updates as well, namely the full bundle updates (since el capitan betas) and the embedded os firmware updates (since sierra betas).
  • Like
Reactions: kissmo


May 27, 2016
damn is all emoji these days, what about stability improvements and bugs fixes. the only use i have for the face palm emoji is to express how i feel about Tim cook AKA Steve Ballmer 2.0 i hope the next CEO bring apple back to their glorious days, Tim is destroying apple, yes they are still making money but the customers are upset for many reasons, lack of innovations and stuff like that, Tim feel and believe PC's are dead, that's why we don't get a new mac pro, well last time i checked the last mac pro was from 2013 and now we are going to the 2017 and we still don't have a new mac pro update but every year we get iPhones, iPads, watches, etc etc etc. don't get me wrong i love apple but Tim has to go. i'm sorry for bringing this up i know steve is gone and i can't compare Tim to steve because steve made the keynote presentation and talk about the product and explained how the product works "functions" but all Tim does is talk for like a minute and say "we are thrill" like 2,000 a minute. sorry but it doesn't feel the same way there is no connection it feels flat and it comes up short. please apple replace this man. i know steve was the one who selected him because it was probably the best option at the time but he is only good for the company not for the costumers, that's how i feel
[doublepost=1480362386][/doublepost]and one last thing maybe i just me but i'm starting to feel like apple is going way too fast, this every year OS thing every year iPhone is going to start to back fire soon, people are going to get tired of it, like a said all Tim care about is money. maybe an OS and an iPhone every 2 years is a better idea.
Last edited:


macrumors regular
Oct 13, 2016
I have been holding out upgrading the Mac OS. I am worried about performance and bugs. How has everyone's experience been so far?

I installed Sierra the day it officially came out, on both my MacBook (2016) and iMac (2015) and every update since. Not had a single problem yet (average use is internet, email, messaging, some word processing, video playback, music playback and the odd bit of gaming, light photo editing, iPhoto library management and iPhone/iPad syncing). The iMac really took off performance-wise when I swapped the HD for an SSD (as would be expected). Not noticed any issues.
  • Like
Reactions: zack793


macrumors newbie
Oct 26, 2014
anyone experiencing kernel panics when starting his macbook pro (mid 2010) running sierra?
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.