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Recent versions of Xcode require macOS 10.14.4 or higher to run. Since you have 10.13.6, you can't run that version of Xcode. With 10.13.6 the most recent version of Xcode you can use is Xcode 10.1. Also, Macs made in 2010 cannot run macOS 10.14.4, which is why that version of macOS is not available to you as an update. Your Mac can't be updated past macOS ...


8

Is there a separate update process in macOS required to get updates for the unix tools and system manuals? For example, according to man screen Apple packages screen ver 4.0.2 (January 2004 vintage) with macOS 10.14.6; that release was 16 years ago this month. No. There is no separate process to update Unix tools/utilities. It’s just very unlikely that ...


4

Yes, security updates show up as recommended updates but softwareupdate -r at least on Mojave is invalid. Note softwareupdate will not install updates for things from the App Store. If you run softwareupdate -l on a system that is due security updates you can see them prefixed with a * character in the --list output which means they are recommended and ...


3

I ran into this issue lately too. I own an early 2011 MBP and was not able to update to Mojave either and therefore I could not install the latest Xcode. While it isn't supported officially, there's still a way to update to Mojave and run the latest Xcode. dosdude1 has created a patcher that allows you to install Mojave on your (officially) unsupported Mac,...


3

The only real issue I see here is the mentioning of /usr/local/etc in the man page. This most probably is just an oversight by Apple when they copied the man page 1:1 from the distribution. On Mojave, screen reads the default configuration from /private/etc/screenrc (which doesn't exist unless you create it). $ strings /usr/bin/screen | grep screenrc %s/....


2

The jump from Mavericks to Catalina may be too much of a leap. Try first upgrading to High Sierra. The website How to upgrade to macOS High Sierra has a link you can use to download the High Sierra upgrade. I suggest this because the installation of High Sierra will also upgrade the firmware to recognize and boot from APFS containers. While this is not a ...


2

Is it possible to submit the update for review, but not have it released immediately after it gets approved Yes. It's possible to do so. When submitting your app for review on App Store Connect, simply select the option to manually release the app instead of automatically release. This way, once the app is approved by Apple, it is kept at hold for release ...


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