Hi,

I just released 0.6.4.beta1, you can download tar.gz and a windows
installer from:

http://code.google.com/p/sympy/downloads/list

It's a beta only, e.g. all tests should pass, but there are still a
few issues to be fixed:

http://code.google.com/p/sympy/issues/list?q=label:Milestone-Release0.6.4

They either need a review, or a simple patch. Most important one is to
reduce the import time:

http://code.google.com/p/sympy/issues/detail?id=1291

Changes since the last release:

$ git shortlog -n sympy-0.6.3..sympy-0.6.4.beta1

Ondrej Certik (48):
      Added tag sympy-0.6.3 for changeset b9eb40b444ef
      Start of the 0.6.4 development cycle
      move all py.test imports into try/except clause (#1210)
      docs: use sphinx 0.5, enable math equations
      deleted .hgtags
      Revert "Goodbye SymPy"
      Priit added to credits
      import sympy: Don't print any warnings in pure Python
      relativity.py: add more documentation and a link to wikipedia
      qft.py: the calculation is now explained in the module docstring
      trees.py: example explained in the docstring
      bin/test: wrap lines correctly in wider terminals
      bin/doctest added
      Adapt the doctest code to produce nice results
      runtests.py: module docstring improved
      Don't doctest files, that cannot be imported
      bin/doctest: blacklist implemented
      Blacklisting modules that don't work with doctests
      Doctest fixes all over sympy
      doctests: three more modules blacklisted
      factortools.py: robustify a test
      outreach: 3 more blog posts added
      docs: GSoC info updated
      README: history making more accurate.
      the list of authors moved to the AUTHORS file
      AUTHORS file added to MANIFEST.in, so that it installs properly
      Freddie added to credits
      aboutus.txt: adding a note that the list is not complete
      tests for Matrix.eigenvects() robustified
      Brian added to credits
      Better wording in the AUTHORS file
      Fixes the -Qnew bug in guess_solve_strategy tests (#1260)
      Tests functions pickling explicitly
      Do not test pickling for regular python functions (#1259)
      rsolve_ratio test robustified
      Adding Andrew to credits
      Kaifeng added to credits
      Removing bench_float.py, because it is obsolete (#1281)
      White space fixed
      matrices: white space fix
      GA doctests fixed
      Do not doctest GA.py and latex_ex.py, because they depend on numpy
      Formatting in GA.py fixed
      ntheory: fixes a doctest error by robustifying the doctest
      docs: links to GA and latex_ex added
      docs: year 2009 added to copyright
      license: the year 2009 added to the copyright
      sympy 0.6.4.beta1 release

Fabian Seoane (24):
      Do not track mac's .DS_Store files
      Don't track gedit backup files
      rename disabled -> !USE_PYTEST on utilities.pytest
      define a variable PYTHON in the doc's Makefile that let's you
customize the default python interpreter
      Support for more types of expressions in solve
      Avoid one nesting by reordering a if/else block. This does not
change the behaviour of the code, it just makes it more readable
      Implement debug framework.
      robustify a test on solvers that was failing on amd64
      improve debugging of limits using the debugging framework
      Refactor Rational._eval_power
      Fix roots_quartic:
      Use by default cubics and quartics formula on roots().
      Calculate rational roots in roots() before calling
degree-specific formulas.
      Documentation for the solvers module.
      Add docstring to solvers.recurr explaining the structure of the module.
      Rename canonize to eval
      Add a test for issue #1120, "solve(Eq(cos(x), sin(x)), x) hangs"
      Documentation for symplify.collect's internal methods.
      Solve bug in collect.
      Solve '.coeff() fails for -x/8 + x*y'
      Use S(1) instead of S.One in tests (more readable).
      Add support for printing tuples with the mathml backend
      Do not return pretty xml by default in
sympy.printing.mathml.mathml as it does not validate.
      Don't import os globally in the top level module.

Mateusz Paprocki (12):
      Implemented k-subsets generator
      Renamed poly_factors to poly_root_factors
      Implemented gf_{from,to}_int_poly functions
      Removed dead and useless code from galoispolys.py
      Fixed and improved gf_{edf,ddf}_shoup docstrings
      Simplified code in gf_factor (use gf_sqf)
      Reimplemented factoring utilities over Z[x]
      Refactored kronecker_mv() and factor() functions
      Use poly_factors() in rootfinding.py instead of old factor()
      Removed Polynomial from printing tests
      Removed sympy.polynomials, use sympy.polys instead
      Implemented rsolve() recurrence solvers wrapper

Andy R. Terrel (9):
      Rearranging example directories as proposed in issue #1196
      Updates ccode printing module according to new printer paradigm.
      Better formatting for examples.
      Improves the vandermonde example.
      Fixing the pidigits example.
      Adding a simple differential equation example.
      Removing tensor example.  Adding qft to all.py.
      Creating more structure in examples/all.py to differentiate
examples that need a plotting window.
      Fixes print_gtk example and mathml printing for Limits and
Integrals (issue 763).

Freddie Witherden (6):
      Simplify sin(atan(x)) and cos(atan(x)).
      Add support for simplifying asin/acos/acot when passed as an
argument to sin/cos.
      Add support for simplifying sin(asin(x)) and equivalents
      Add support for function bracket and fractional power folding to
LaTexPrinter.
      Add support for multiplication symbols to LaTeXPrinter.
      Switch to a dictionary for LaTexPrinter options.

Robert Kern (6):
      BUG: Allow BasicMeta subclasses to be compared with sympifiable objects.
      BUG: the lists for map() need to be the same length
      BUG: Implement __getnewargs__ to allow protocol 2 pickling
      ENH: Also test that copy and deepcopy work.
      BUG: Allow Piecewise to be pickled.
      BUG: (x**2).is_even fixed (#998)

Riccardo Gori (5):
      Importing pi in statistics module prevents Normal.pdf to fail
      Tests for Normal.pdf
      Fix XPASS names output
      Make pretty test __name__ indipendent.
      Change test mechanism, fix Issue #1141.

Fredrik Johansson (4):
      Update sympy.mpmath to mpmath-svn
      fix integer divisions in mpmath
      mpmath: fix another division bug
      Improvements to integer factorization

Alan Bromborsky (2):
      Upgrade of galgebra removed GAsympy and latex_out
      Changes class LaTeXPrinter to LatexPrinter.

Brian E. Granger (2):
      Adding setupegg.py to allow python setupegg.py develop
      First implementation of the second quantization

Kirill Smelkov (2):
      Goodbye SymPy
      Removing Kirill from credits.

Priit Laes (2):
      Added Curve entity to sympy.geometry
      Add basic line integral support.

Vinzent Steinberg (2):
      add a comment why a "working" test is xfailed
      fix compiler warnings in compilef.py

Andrew Straw (1):
      DeferredVector implementation, allowing lambdification using
arbitrary vectors

Kaifeng Zhu (1):
      Fixes an infinite loop in factorint()   (#1257)


Ondrej

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