0.5.0 - initial release
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0.5.9 - signal ABI bugfix, various cleanup and fixes:
sigset_t was wrongly defined as 1024 bytes instead of 1024 bits,
many internal improvements have been made to the syscall-related code
in preparation for porting to x86_64 and other archs.
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0.6.0 - x86_64 port, various important bugs fixed
new x86_64 (amd64) architecture port, contributed by Nicholas J. Kain,
fixed a major bug in the printf %n specifier that prevented it from
working and caused memory corruption.
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UPCOMING RELEASE - major posix conformance improvements
implemented posix shared memory and semaphore interfaces.