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From: Achim Gratz <Stromeko AT nexgo DOT de>
To: cygwin AT cygwin DOT com
Subject: [ANNOUNCEMENT] Updated: gmp-6.1.0-1
Date: Sat, 07 Nov 2015 23:49:45 +0100
Message-Id: <announce.87a8qpctme.fsf@Rainer.invalid>
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GNU Multiple Precision Arithmetic Library
=========================================

GMP is a free library for arbitrary precision arithmetic, operating on
signed integers, rational numbers, and floating point numbers. There is
no practical limit to the precision except the ones implied by the
available memory in the machine GMP runs on. GMP has a rich set of
functions, and the functions have a regular interface.

Version 6.1.0 is an upstream release fully binary and ABI compatible
with the 6.0.0 and 5.x versions.

--8<---------------cut here---------------start------------->8---
GMP 6.1.0 release announcement

BUGS FIXED

    The public function mpn_com is now correctly declared in gmp.h.
    
    Healed possible failures of mpn_sec_sqr for non-cryptographic sizes
    for some obsolete CPUs.
    
    The option --disable-assembly now disables all inlined asm.
    
    Fixed bug affecting mini-gmp's bitwise functions mpz_setbit,
    mpz_clrbit, and mpz_combit.
    
    Various problems related to precision for mpf have been fixed.
    
    Fixed ABI incompatible stack alignment in calls from assembly code.
    
    Fixed PIC bug in popcount affecting Intel processors using the
    32-bit ABI.
    

SPEEDUPS

    Speedup for Intel Broadwell and Skylake though assembly code making
    use of new ADX instructions.
    
    Square root is now faster when the remainder is not needed. Also the
    speed to compute the k-th root improved, for small sizes.
    
    Improved arm64 support.


FEATURES

    New C++ functions gcd and lcm for mpz_class.
    
    New public mpn functions mpn_divexact_1, mpn_zero_p, and
    mpn_cnd_swap.
    
    New public mpq_cmp_z function, to efficiently compare rationals with
    integers.
    
    Support for Darwin in all x86 code, thereby enabling fat builds on
    Darwin.
    
    Support for more 32-bit arm processors.
    
    Support for compilation with clang/llvm on more platforms. Caution:
    GMP triggers mis-compilation bugs in clang for many platforms, such
    as arm, x86 (32-bit and 64-bit), powerpc, mips.
    
    Support for AVX-less modern x86 CPUs. (Such support might be missing
    either because the CPU vendor chose to disable AVX, or because the
    running kernel lacks AVX context switch support.)
    
    Stack usage trimmed; we believe 512 KiB is now sufficient for any
    GMP call, irrespective of operand size.
    
    Support for NetBSD under Xen; we switch off AVX unconditionally
    under NetBSD since a bug in NetBSD makes AVX fail under Xen.


MISC

    We now use manufacturers' code names for x86 CPUs, e.g., "haswell"
    instead of names derived from the commercial brands.
    
    Small improvements and better coverage for the test suite.
    
    The various FreeBSD problems listed for 6.0.0 affect this release
    too.
    
    Tuned values for FFT multiplications are provided for larger number
    on many platforms.
    

This release would not have been possible without the continuous work of
improvement, revision and refinement by the whole GMP team: Torbjörn
Granlund, Niels Möller, Marco Bodrato, and Marc Glisse.

Please see the GMP manual for a complete list of GMP contributors.
--8<---------------cut here---------------end--------------->8---


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