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Release Notes: Tools
The compiler and debugger technologies of Mac OS X are essential for building software projects. Apple supports a number of open-source technologies, such as GCC and GDB, which can be used from Xcode or from the command line.
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LLVM-GCC Release Notes (HTML)
Lists changes to LLVM-GCC technology.
 2008-09-09
dyld Release Notes (HTML)
Updated for Mac OS X v10.5
 2007-10-31
GCC 4 Release Notes (HTML)
Updated for Xcode 3.0
 2007-10-31
Symbol Variants Release Notes (HTML)
Describes symbol variants, a way of providing multiple versions of symbols for backwards compatibility.
 2007-10-16
GDB Release Notes (HTML)
Updated for Mac OS X v10.5
 2007-05-16
Compiler Tools Release Notes (HTML)
Describes the latest changes to the Mach-O assemblers, linkers, and object file tools.
 2007-04-11
GCC 3 Release Notes (HTML)
Updated for Xcode 2.3
 2006-05-23