Announce: GNU MPFR 3.1.5 is released

Vincent Lefevre vincent at
Tue Sep 27 11:51:39 UTC 2016

GNU MPFR 3.1.5 ("canard à l'orange", patch level 5), a C library for
multiple-precision floating-point computations with correct rounding,
is now available for download from the MPFR web site:

from InriaForge:

and from the GNU FTP site:

Thanks very much to those who sent us bug reports and/or tested the
release candidate.

The SHA1 digests:
874e84bb5959fd5a19c032cfb5d673dded4b5cff  mpfr-3.1.5.tar.bz2
2a2118179f8f3c682389dcddc800d30132e8794a  mpfr-3.1.5.tar.gz
c0fab77c6da4cb710c81cc04092fb9bea11a9403  mpfr-3.1.5.tar.xz

The SHA256 digests:
ca498c1c7a74dd37a576f353312d1e68d490978de4395fa28f1cbd46a364e658  mpfr-3.1.5.tar.bz2
f4eb5070883aee3fd8b927751ea63ff95aebe24418cde852439ce74c3dd2513c  mpfr-3.1.5.tar.gz
015fde82b3979fbe5f83501986d328331ba8ddf008c1ff3da3c238f49ca062bc  mpfr-3.1.5.tar.xz

The signatures:

Each tarball is signed by Vincent Lefèvre. This can be verified using
the DSA key ID 980C197698C3739D; this key can be retrieved with:

  gpg --recv-keys 980C197698C3739D

or by downloading it from <>.
The key fingerprint is:

  07F3 DBBE CC1A 3960 5078  094D 980C 1976 98C3 739D

The signatures can be verified with: gpg --verify <file.asc>
You should check that the key fingerprint matches.

Changes from version 3.1.4 to version 3.1.5:
- C++11 compatibility.
- Bug fixes (see <> and ChangeLog file).
- More tests.

You can send success and failure reports to <mpfr at>, and give
us the canonical system name (by running the "./config.guess" script),
the processor and the compiler version, in order to complete the
"Platforms Known to Support MPFR" section of the MPFR 3.1.5 web page.


Vincent Lefèvre <vincent at> - Web: <>
100% accessible validated (X)HTML - Blog: <>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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