This file records noteworthy changes.
0.9.1 (<date>)
-* Added remove_first() and remove_last() methods for lists.
-* Added symmetrize_cyclic().
+* New functions/methods:
+ - remove_first() and remove_last() for lists
+ - symmetrize_cyclic()
+ - decomp_rational()
+* Instead of just totally symmetric or antisymmetric, complex symmetries
+ can now be defined for indexed objects. Symmetries are described by a
+ tree of "symmetry" objects that is constructed with the sy_none(),
+ sy_symm(), sy_anti() and sy_cycl() functions. The symmetry of a function
+ with respect to its arguments can also be defined (this is currently
+ only used for the Beta function).
+* Generalized map() to take a function object instead of a function pointer.
+ This allows passing an arbitrary number of additional state to the
+ function being called.
+* color_trace(), dirac_trace(), diff(), expand(), evalf() and normal() work
+ better with container classes, e.g. using color_trace() on a relation will
+ take the trace on both sides, using diff() on a matrix differentiates every
+ element etc.
+* diff() works properly with non-commutative products and indexed objects.
+* Supplement some (now deprecated) macros by inlined template functions:
+ - is_of_type(foo, type) -> is_a<type>(foo)
+ - is_ex_of_type(foo, type) -> is_a<type>(foo)
+ - is_exaclty_of_type(foo, type) -> is_exaclty_a<type>(foo)
+ - is_ex_exaclty_of_type(foo, type) -> is_exaclty_a<type>(foo)
+ - ex_to_foobar(baz) -> ex_to<foobar>(baz)
+* rem(c, p[x], x) erroneously returned p[x] instead of c.
0.9.0 (7 June 2001)
* In the output and in ginsh, lists are now delimited by { } braces, and