xcode 6Apple today released an updated version of Xcode, Xcode 9.3.1. The new version of Xcode comes over a month after the release of Xcode 9.3, which was launched alongside iOS 11.3 back in late March.

Xcode 9.3.1 is a minor bug fix update. According to Apple's release notes, it addresses an issue that could cause a user to have to log in with their Apple ID repeatedly and it fixes a bug that could cause Xcode to hang when using Playgrounds.

Xcode 9.3, the previous update, introduced a new Energy organizer designed to help developers detect when an app or app extension is using too much battery life on a user's device.

The software also brought a new 64-bit testing mode for macOS 10.13.4, which is designed to let developers test software for 64-bit compatibility as Apple prepares to start phasing out 32-bit Mac apps. As of Xcode 9.3, Xcode support for macOS 32-bit support has been depreciated.

Xcode 9.3.1 will be followed by Xcode 9.4, which is currently in beta testing. Apple has seeded two betas of Xcode 9.4 to developers thus far.

Top Rated Comments

hunt2013 Avatar
73 months ago
That goodness for the fix to Playgrounds crashing. It is hard to test stuff when it crashed every 5 minutes.
Score: 2 Votes (Like | Disagree)
Reason077 Avatar
73 months ago
Xcode really does crash a fair bit, doesn’t it.
Mines pretty stable so long as you stick to the code editors. But once you start messing around in Interface Builder, it can be a nightmare.
Score: 2 Votes (Like | Disagree)
chrono1081 Avatar
73 months ago
Finally fixed playgrounds! They're so useful and it sucks not having them.
[doublepost=1526048728][/doublepost]
How can I crash thee, let me count the ways... Xcode crashing is basically expected for me at this point, you just never know what's going to make it crash the next time.
I go months between crashes and I use it for at least 8 hours a day. I'm not sure how so many people are getting so many crashes. The only crashes I experienced frequently were not even crashes, but rather slowdowns and unresponsiveness in the playgrounds.

I'm not saying you're lying about the crashes, I'm rather just curious on why some people experience so many of them and what the common denominator among those experiencing crashes is.
Score: 1 Votes (Like | Disagree)
Markoth Avatar
73 months ago
That goodness for the fix to Playgrounds crashing. It is hard to test stuff when it crashed every 5 minutes.
How can I crash thee, let me count the ways... Xcode crashing is basically expected for me at this point, you just never know what's going to make it crash the next time.
Score: 1 Votes (Like | Disagree)
tzm41 Avatar
73 months ago
The Playgrounds are almost useless. Due to bugs and limitations, and I don't just mean the one they fixed, it's honestly faster in almost every case to use a fresh project.

Better yet, use React Native if you wanna quickly iterate with GUI. It's so much easier because you just write to the file, and it insta-updates so you can tweak things quickly instead of having to take forever rebuilding (Swift takes sooooo freaking long to build vs ObjC). That and the language and libraries are way easier to deal with for GUI. And I get to use Vim. Only thing is I feel dirty using Javascript.
[doublepost=1526196452][/doublepost]
No, mine crashes pretty rarely now. But... rant incoming... ever since the Swift update, it's been crappy in many other ways. Builds take forever. There are not-super-rare memory leaks. I used to get tons of segfaults IN THE COMPILER while compiling, and it still happens on rare occasions if I have a syntax error in some crazy thing involving generics. The debugger's variable inspection is broken af, like to the point where I can't expect anything to work, so I use print statements instead. The code completion used to also be broken, but now it works pretty reliably but often slowly.

Btw, Swift is a decent language and quite the engineering marvel, but there are some decisions they made that I can't fathom. String manipulation is unbelievably difficult, to the point where I've relied on custom solutions. Structs are very weird to work with, and pass-by-value arrays are a "wtf" kind of surprise to newbies. Syntax is weird and unintuitive in many places, especially code blocks.
Second the part with debugger variable inspection. I never use that crap anymore.
Score: 1 Votes (Like | Disagree)
tzm41 Avatar
73 months ago
Finally fixed playgrounds! They're so useful and it sucks not having them.
[doublepost=1526048728][/doublepost]

I go months between crashes and I use it for at least 8 hours a day. I'm not sure how so many people are getting so many crashes. The only crashes I experienced frequently were not even crashes, but rather slowdowns and unresponsiveness in the playgrounds.

I'm not saying you're lying about the crashes, I'm rather just curious on why some people experience so many of them and what the common denominator among those experiencing crashes is.
It definitely depends on the complexity of your project. It doesn't handle very large projects, or projects with a lot of RxSwift, or code that puts compiler's typer inference ability to test, very well. Also if there are some IBDesignables, IB crashes very often.
[doublepost=1526055140][/doublepost]
Except, when someone is using the Apple provided lessons in App Development with Swift (which Apple is promoting as the definitive teaching solution), the student has to use playgrounds for a majority of chapters.

I'm glad Apple fixed it.
[doublepost=1526053450][/doublepost]

I'm guessing here, but I'm betting this line from your signature has something to do with it: "Mac Pro (2010): 3.33Ghz Intel Xeon (6 core) - 24 GB RAM - NVidia Quadro k5000".

Before this latest bug, my 15" MacBook Pro had no issues, but my 13" MacBook Pro would hang from time to time.
For me, Xcode 9 itself probably only crashes once per week. I consider that huge improvement from 7 and 8. The crashes are mostly not due to the power of the machine though. Often times it's code editor trying to access an non existent line and causes index out of bounds, or some other cryptic crash on NSView loading frames.

IB engine crashes quite often, as well as compiler when I switch branches.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 17

iOS 17.2 Will Add These 12 New Features to Your iPhone

Friday December 1, 2023 12:19 pm PST by
iOS 17.2 has been in beta testing for over a month, and it should be released to all users in a few more weeks. The software update includes many new features and changes for iPhones, including the dozen that we have highlighted below. iOS 17.2 is expected to be released to the public in mid-December. To learn about even more features coming in the update, check out our full list. Journal ...
iOS 17

28 New Things Your iPhone Can Do in December's iOS 17.2 Update

Friday December 1, 2023 2:57 am PST by
Apple made the first beta of iOS 17.2 available to developers in October. Since then we've seen three more betas, and with each iteration Apple continues to add more new features and changes, many of which users have been anticipating for quite a while. Below, we've listed 28 new things that are coming to your iPhone when the finalized version is publicly released this December. 1. Help...
anker new xmas 1

Anker's Cyber Week Sale Enters Final Days With Up to 60% Off Sitewide

Friday December 1, 2023 12:05 pm PST by
Anker's Black Friday/Cyber Week event is entering its final days this weekend, and it's still offering up to 60 percent off sitewide. There are also a few "mystery boxes" that can include hundreds of dollars in savings, if you're willing to risk not knowing what you're buying ahead of time. All of these sales will end on December 3. Note: MacRumors is an affiliate partner with Anker. When you...
iOS 17

Apple Releases iOS 17.1.2 With Security Fixes

Thursday November 30, 2023 10:12 am PST by
Apple today released iOS 17.1.2 and iPadOS 17.1.2, small updates to the iOS 17 and iPadOS 17 operating systems that Apple introduced in September. iOS 17.1.2 and iPadOS 17.1.2 come a few weeks after the release of iOS 17.1.1, another bug fix update. iOS 17.1.2 and iPadOS 17.1.2 can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update....
iPhone 16 Mock Header Updated 1

iPhone 16 to Include Action Button Across Entire Lineup

Thursday November 30, 2023 4:08 pm PST by
The release of the iPhone 15 Pro and Pro Max saw the introduction of an entirely new user-configurable button known as the Action button, and now, MacRumors has seen extensive evidence confirming Apple is planning to include the Action button on the entire iPhone 16 range. Designs and plans for the Action button date back to at least 2021, as the button was intended for release alongside hapt...
General Apps Messages

Green Bubbles on iPhone to Gain These 7 New Features Next Year

Thursday November 30, 2023 9:00 am PST by
Earlier this month, Apple announced that it will finally support RCS in the Messages app on the iPhone starting later next year. This change will result in several improvements to the messaging experience between iPhones and Android devices. RCS will become the new default standard for messaging between iPhones and Android devices, but these conversations will still have green bubbles like...
top stories 2dec2023

Top Stories: iOS 17.1.2 Released, NameDrop Misinformation, and More

Saturday December 2, 2023 6:00 am PST by
Apple employees are back to work following a Thanksgiving break, and that means this week saw a number of new operating system updates for both public release and beta testing. This week also saw some misinformation about Apple's new NameDrop feature making the rounds, while Apple and Goldman Sachs appear to be on the verge of a break-up in their Apple Card and savings account partnership,...