# SCL Compiler

## Release notes

### 0.4

* Documentation browser
* Type checking reimplemented
  * Properly implemented subsumption solver
* Improvements in pattern matching
  * [http://zvon.org/other/haskell/Outputsyntax/As-patterns_reference.html As-patterns]
  * List pattern matching
* [http://www.haskell.org/haskellwiki/Section_of_an_infix_operator Sections] 
* Refactoring Prelude
  * Support for native arrays (Vector type)
  * Refactored Show class to use StringBuilder
  * Renamed map -> fmap, mapE -> map
* Improvements in optimizer
  * [http://www.haskell.org/haskellwiki/Short_cut_fusion Short-cut fusion]
  * Bugfixes leading to much more efficient code in some cases
* Automatic conversion from java method returning a Collection to List
* Compilation environment parameter that is passed to source loaders
* Fixing code generation related to Maybe type
* More unit tests
* Misc. bugfixes

### 0.3

There was no official release, but the version used in the first SCL training 14.5.2013 is considered 0.3.