We're releasing Sage 5.3.beta0.

Source archive:

http://boxen.math.washington.edu/home/release/sage-5.3.beta0/sage-5.3...

Upgrade path:

http://boxen.math.washington.edu/home/release/sage-5.3.beta0/sage-5.3...

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.

== Tickets ==

* We closed 31 tickets in this release. For details, see

  http://boxen.math.washington.edu/home/release/sage-5.3.beta0/tickets....

Closed tickets:

#480: Make Sage work with SELinux on Linux [Reviewed by Mike Hansen]
#1760: on osx make a symlink sage.command --> sage [Reviewed by
Karl-Dieter Crisman]
#8668: Sage 6.0 press release [Reviewed by Karl-Dieter Crisman, Jason Grout]
#10509: cvxopt: undefined symbol: ilaenv_ [Reviewed by Volker Braun]
#11647: Numerical approximation to one digit [Reviewed by Karl-Dieter
Crisman, Julian Rueth, Eviatar Bach]
#12201: The new R spkg breaks building from source on at least one OS X
system. [Reviewed by Maarten Derickx]

Merged in sage-5.3.beta0:

#2607: Dan Drake, Andrey Novoseltsev, Andrzej Giniewicz, Volker Braun:
find_minimum_on_interval() uses the wrong scipy function [Reviewed by
Karl-Dieter Crisman, Mike Hansen, Andrey Novoseltsev]
#5612: Adrien Brochard: example of solving a system of linear equations
symbolically using symbolic matrices [Reviewed by mmasdeu, Benjamin Jones]
#10444: Karl-Dieter Crisman: Make solve documentation better [Reviewed
by Benjamin Jones]
#12043: Alan Lauder: Hecke series for overconvergent modular forms
[Reviewed by David Loeffler]
#12120: Julian Rueth: Improve documentation of numerical_approx()
[Reviewed by Eviatar Bach, Karl-Dieter Crisman]
#12140: Mike Zabrocki: Symmetric functions uses lrcalc in symmetrica and
bug fix in skew Schur function indexed by [[], []] [Reviewed by Anne
Schilling]
#12503: Kwankyu Lee: Convenient history fetch commands [Reviewed by
Dmitrii Pasechnik]
#12612: Marc Masdeu: Fix is_unit() in padics so that it is
mathematically correct [Reviewed by David Roe, Robert Bradshaw, Kwankyu Lee]
#12643: Vincent Delecroix: irreducibility of generalized permutation
[Reviewed by Frédéric Chapoton]
#12768: David Roe, John Palmieri: Better plotting for isogeny graphs of
elliptic curves, and handling of LMFDB labels [Reviewed by John Cremona,
Volker Braun]
#12840: Martin Albrecht, John Palmieri: update M4RI to newest upstream
release [Reviewed by Simon King, Volker Braun]
#12841: Martin Albrecht: update M4RIE to newest upstream release
[Reviewed by Simon King, Jeroen Demeyer, Volker Braun]
#12860: Daniel Smertnig: Incorrect computation of maximal orders in
quaternion algebras [Reviewed by Aly Deines]
#12923: Florent Hivert: Comparison of vectors is O(n) even in the simple
cases [Reviewed by Travis Scrimshaw]
#12959: Nicolas M. Thiéry, Franco Saliola: Improvements to
Sets.WithRealizations [Reviewed by Mike Zabrocki]
#12969: Simon King: Coercion failures in symmetric functions [Reviewed
by Anne Schilling]
#13089: David Eklund: Implement weighted projective spaces. [Reviewed by
Andrey Novoseltsev]
#13100: John Cremona: EllipticCurve_from_j (over QQ) should not always
compute minimal twist [Reviewed by David Roe]
#13218: David Roe: Laurent series ring doesn't carry over default prec
[Reviewed by Robert Bradshaw]
#13224: Anne Schilling: Implementation of test method for slender posets
[Reviewed by Chris Berg]
#13229: Alexander Dreyer: Adding `DegNegLex` to TermOrder [Reviewed by
Martin Albrecht]
#13233: J Beier: Add simple SST poset to the posets examples [Reviewed
by Jessica Striker, Anne Schilling]
#13238: Franco Saliola: add functionality for counting, generating, and
manipulating non-negative integer matrices [Reviewed by Chris Berg]
#13243: Franco Saliola, Nicolas Thiery, Florent Hivert, Chris Berg: new
methods for compositions [Reviewed by Chris Berg, Mike Zabrocki]
#13265: Alexander Dreyer: Missing attributes of `pbori.pyx`'s
`BooleConstant` [Reviewed by Martin Albrecht]