Sage 4.0.1 Release Tour
Sage 4.0.1 was released on FIXME. For the official, comprehensive release note, please refer to FIXME. A nicely formatted version of this release tour can be found at FIXME. The following points are some of the foci of this release:
Algebra
Algebraic Geometry
Basic Arithmetic
Combinatorics
Commutative Algebra
Geometry
Graph Theory
Graphics
Group Theory
Interfaces
Linear Algebra
Miscellaneous
Modular Forms
Number Theory
Packages
P-adics
Quadratic Forms
Symbolics