Typed Racket HISTORY for 5.2.1.

Please merge to release.
(cherry picked from commit b839b03d4b)
This commit is contained in:
Sam Tobin-Hochstadt 2012-01-24 10:49:11 -05:00 committed by Ryan Culpepper
parent cc50af60c2
commit 25e59f69b4

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5.2.1
- Inference of functions with keyword arguments
- `typecheck-fail' for explicit creation of type errors
- Extensive documentation of typed numeric tower
5.2
- Performance work: delayed environment evaluation
- Support `racket'-style optional arguments