As always, you can get the latest beta version from the "develop" git 
branch. Alternatively, the self-contained source tarball is at 
http://www.sagemath.org/download-latest.html

edb1b08 Updated Sage version to 6.9.beta0
a7cb38e Trac #18962: Double free in ft2font
5b81e36 Trac #16133: delete deprecation warning in FSM.process and __call__
0feb845 Trac #14243: Try not to pick up user versions of things like numpy, 
mpl
79beba9 Trac #18760: Posets: Slightly faster is_lattice()
a24ef7d Trac #16106: Delete deprecation warning in 
Transducer.cartesian_product
8b9b5f8 Trac #18950: Remove make_dlxwrapper from the sage namespace
30db7a2 Trac #18901: Bug in continued fractions of real literal
302e07a Trac #11814: Catch and fix the segmentation fault in dlx_solver
b0c423f Trac #18331: Introduce initial distribution for Markov chains
79703ef Trac #18868: a MemoryAllocator object for easier Cython memory 
management
7f4edff Trac #18949: a doc typo in graph.py
8a5edad Trac #18943: typo in infinity crystal
bd1cc60 Trac #18925: Poset documentation polishing: covers
1e4a91f Trac #18864: New method for the eccentricity of undirected graphs
be37bdb Trac #18791: Matroid k-connectivity
745a19d Trac #17485: Poset: Documentation of characteristic_polynomial
a499206 Trac #18947: Add a -fix-pkg-checksums argument to sage
9f03cc2 Trac #18926: Auto-generated index of functions
16c5a77 Trac #18923: Remove flag METH_OLDARGS
4577fde Trac #18906: Refactor min spanning tree
85339c8 Trac #18898: Fix sorting of riggings when doing complement_rigging
54ef590 Trac #18871: MILP formulation for cutwidth
f347008 Trac #18812: latte_int: count integer points
9a1899b Trac #18583: Clean up PARI declarations
f1e2907 Trac #15463: Implement crystal morphisms, subcrystals, and virtual 
crystals
b41c808 Trac #14585: Make lazy_format and lazy_string faster
ee47081 Trac #7744: STL, AMF, X3D and PLY export for 3D printing
7eb8510 Updated Sage version to 6.8

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