Xcode 5.1.1 Release Notes

Resolved Issues

Build System

• Updated compiler options logic allows "Enforce Strict Aliasing" to be set to off with the -Ofast flag (16368909)
• Errors when using xcodebuild -parallelizeTargets option or equivalent Xcode build setting (16420957)

Compiler

• Crash in compiled code when using ARC and C++ (16368824)
• Compiler error when using the -fsanitize=undefined-trap and -fsanitize-undefined-trap-on-error options (16387418)
• Crash in compiled code when targeting iOS 5.1.1 (16485980)
• Compiler crashes when compiling C++ initializers and other situations (16438726, 16368865)

Linker

• Crashes and errors in the linker related to LTO, dead stripping, and branch out of range (16368534, 16368564, 16368631)

Debugging

• Xcode crash when debugging (16369101)
• Issue where some objects would not display in the Quick Look display on the first try (16368930)
• Inconsistent behaviors in the UIView Quick Look display (16368999)
• Problem with Quick Look for UIImageView (16489265)
• Xcode crash with multiple debugging sessions (16369025)

Testing

• Compiler error after converting a project from OCUnit to XCTest (16387456)

Xcode Server

• Issue where Xcode Server sometimes incorrectly claims that the version of OS X Server is incompatible (16436893)

Release Notes Updates

Xcode Release Notes is sometimes updated after a release is distributed. You can check for the most up-to-date version of Xcode Release Notes at the Apple Developer website:https://developer.apple.com/library/etc/redirect/xcode/release_notes.

Revision: XC5.1.1 - XRN1

Release Notes History

Editions of Xcode Release Notes per release are combined into chapters organized by major revision for easy searching.

• “Xcode 5 Release Notes”
• “Xcode 4 Release Notes”