About Apple security updates

Xcode 11 included the macOS 10.15 SDK, which had the system headers for Catalina, including the Ruby 2.6 headers (rather than Ruby 2.3 that shipped with Mojave). This left our customers unable to install gems that had native dependencies. Installation of Xdebug on MacOS Catalina 10.15 14th Oct 2019 PHP IDE XDebug MacOS Catalina After figuring out a way around the massive breaking change introduced by Xcode 11, it's now time to install Xdebug back on MacOS Catalina. Before we get right to how to install command line tools on macOS, let us look at what macOS Catalina is all about. Apple just made available a major release of its macOS codenamed macOS Catalina (version 10.15). MacOS Catalina is the sixteenth release of Apple’s desktop operating system for Macintosh computers.

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Xcode For Catalina 10.15 Update

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

Xcode 12.4

Released January 26, 2021

Xcode IDE

Available for: macOS Catalina 10.15.4 and later

Xcode For Catalina 10.15 Download

Impact: A malicious application may be able to access arbitrary files on the host device while running an app that uses on-demand resources with Xcode

How To Update Xcode Catalina

Description: A path handling issue was addressed with improved validation.

CVE-2021-1800: Theodore Dubois (@tblodt)