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It's been a long time but the biggest release ever of Boo is right here now!

Huge improvements all over the board as you can read in the full changelog, its chief weapons are:

  • Generator macros [BOO-1077] - macros are no longer limited to returning a single statement or block and instead are able to yield an indefinite number of nodes:
  • Nestable macros [BOO-1120] - macro definitions can be nested to allow for context sensitive keywords
  • Type member macros [BOO-415] - macros can be used in class definition bodies
  • Pattern matching [BOO-1106] - simple but powerful object pattern matching with the match/case/otherwise macros
  • Support for generic extension methods [BOO-937] - LINQ style extension methods
  • Generic parameter constraints [BOO-935] and Generic parameter type inference [BOO-1102]
  • Strict mode [BOO-1115] - strict mode changes a few compiler rules: default visibility for members is private, method parameter types and return types must be explicitly declared, among other things
  • Asymmetric property accessor visibility [BOO-1094]
  • String interpolation formatting (eg. "0x${n:x4}") [BOO-1006]
  • Support for SilverLight profile [BOO-1117] - and Vladimir Lazunin kicked it off with a Tetris example.

You can read examples on these 0.9 new features on Rodrigo's blog.

This release is brought to you by Avishay Lavie, Cedric Vivier, Daniel Grunwald, Marcus Griep and Rodrigo B. De Oliveira.

Download it now and have fun!
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