We're releasing Sage 5.5.beta1.

Source archive:

http://boxen.math.washington.edu/home/release/sage-5.5.beta1/sage-5.5...

Upgrade path:

http://boxen.math.washington.edu/home/release/sage-5.5.beta1/sage-5.5...

The source and upgrade path can also be found on the mirror network
(you might need to wait a while before the mirrors are synchronized):

http://www.sagemath.org/download-latest.html

Please build, test, and report!  We'd love to hear about your
experiences with this release.

== Notes ==

* There are known problems with segmentation faults while doctesting
  sage/schemes/elliptic_curves/ell_number_field.py on certain systems.
  This is caused by #715 and #11521 but to maximize the chances of
  fixing this problem, these patches will remain in the betas.

== Tickets ==

* We closed 53 tickets in this release. For details, see

  http://boxen.math.washington.edu/home/release/sage-5.5.beta1/tickets....

Merged in sage-5.5.beta1:

#4453: William Stein: elliptic curves -- heegner_index command gives
nonsense when rank > 1 [Reviewed by John Cremona, Robert Bradshaw]
#6822: John Palmieri: "empty" .spkg files in binary builds confusing
[Reviewed by Jeroen Demeyer]
#9191: Karl-Dieter Crisman, Jeroen Demeyer: Running .spyx files from the
command line doesn't work anymore [Reviewed by Jeroen Demeyer,
Karl-Dieter Crisman]
#11353: David Coudert: bitset complement [Reviewed by Nathann Cohen]
#11395: Marshall Hampton, François Bissey: Upgrade Gfan to latest
release (version 0.5) [Reviewed by François Bissey, Volker Braun]
#11403: Jeroen Demeyer, David Roe: NTL error while inverting q-adic
number with fixed modulus precision [Reviewed by Julian Rueth]
#12341: R. Andrew Ohana: Empty (full) cremona database in Sage 4.8
causes tests to fail [Reviewed by John Cremona]
#12513: Robert Bradshaw: Slow CDF fast_callable powers [Reviewed by Timo
Kluck, Jeroen Demeyer]
#12584: David Roe: coercing large numbers into elements of GF fails
[Reviewed by Travis Scrimshaw]
#12586: Julien Puydt: [ARM] Maxima has a strange numerical precision
issue [Reviewed by Dmitrii Pasechnik]
#12905: Nathann Cohen: Memory leaks with Cliquer [Reviewed by David Coudert]
#12943: Hugh Thomas: Tableau_class.__div__,  Partition_class.__div__ are
checking domination when they should check inclusion [Reviewed by Mike
Hansen, Andrew Mathas]
#13072: Andrew Mathas: Implementation of PartitionTuple + some minor
fixes to partition.py [Reviewed by Travis Scrimshaw]
#13082: Robert Bradshaw: Powering rings to a 2-tuple should create
matrix spaces. [Reviewed by Jason Grout]
#13147: David Roe, Mike Hansen: Delay the evaluation of SAGE_TMP in
order to facilitate forking in doctesting [Reviewed by John Palmieri]
#13159: Simon King: Cache the number of arguments of a cached method
[Reviewed by David Roe]
#13365: Kevin Halasz: Add Semidirect Product Method for Permutation
Groups [Reviewed by Benjamin Jones]
#13412: Simon King: PowerSeriesRing should call Ring.__init__ [Reviewed
by Travis Scrimshaw]
#13501: Nicolas M. Thiéry, Simon King: Fix two bugs in sage.misc.c3's
implementation of the algorithm C3 [Reviewed by Simon King]
#13506: Chris Berg: Monomial basis of NCSF [Reviewed by Luis Serrano,
Mike Zabrocki]
#13520: Joris Vankerschaver: Derivative/integral of cubic splines in
sage/gsl/interpolation.pyx [Reviewed by Travis Scrimshaw]
#13563: Anne Schilling: KR crystals for spinors in type D [Reviewed by
Dan Bump, Nicolas M. Thiery]
#13574: Jeroen Demeyer: sage-spkg: check much earlier whether package is
already installed [Reviewed by John Palmieri]
#13578: David Coudert: Generator for Ringed-Tree graphs [Reviewed by
Nathann Cohen]
#13599: Nathann Cohen: Bugfix in is_cartesian_product [Reviewed by David
Coudert]
#13634: Travis Scrimshaw: Fix to output of scientific notation for real
interval field [Reviewed by Robert Bradshaw]
#13639: Jeroen Demeyer: Inverting 0 mod 1 [Reviewed by Robert Bradshaw]
#13643: Jason Grout: default norm for RDF/CDF matrices is inconsistent
with other types of matrices [Reviewed by Punarbasu Purkayastha]
#13646: Nathann Cohen, Volker Braun: Bug in p.add_constraint (when input
is True/False) [Reviewed by Dima Pasechnik]
#13653: Volker Braun: Missing Exception type in element.pyx [Reviewed by
Robert Bradshaw]