Changes in Clean 1.1

The paragraph numbers in this summary refer to the Clean Reference Manual
1.1.
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Changes in the Language

The syntax and semantics of classes are improved. The overload declaration
is incorporated in the class declaration. It is now also possible to combine
uniqueness typing with type (constructor) classes (see 8.4)

Curly braces are used for arrays instead of the ugly '{:' ':}' pair (see
4.9)

There are different kind of array implementations for optimal efficiency
(lazy, strict, unboxed). The class concept makes it possible to define
overloaded functions which can deal with all of them (although we are not
yet completely happy with the current solution) (see 8.1.5).

Uniqueness type attribute equations can now also be specified by the
programmer. This allows the definition of higher order functions like 'bind'
such that they can now also be applied to possibly unique arguments without
enforcing unnecessary restrictions (see 9.3.2).

Arrays can be used as an instantiation of classes (see 8.4).

A string is not a basic type anymore but has become synonym for an (unboxed)
array of character (the type String is now defined as type synonym in module
StdString).

Macro definitions can contain local definitions (which are substituted as
well) (see 11.1).

Macros can be applied curried (see 11.1).

Constructors for which also functions are defined are kicked out (there were
not used very often and it complicated the compiler).
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Changes in the Standard Environment

The Standard Environment has slightly changed (sorry about this
inconvenience) (see appendix B).

Some operators and functions are moved to other modules to increase
orthogonality.

The priority of some operators have been changed (see B.1.16 for a list of
operators). We also had to rename some functions (e.g. # to size/length)
because these symbols are reserved for a handy syntax extension which will
become available in the next release (see B.1.7 and B.1.10).

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Bug fixes

We've fixed many bugs. If you find any bugs in this release, please report
them to clean-bugs@cs.kun.nl.