Some starter sentences.

On Fri, Jan 18, 2019 at 2:01 PM Vincent St-Amour
<[email protected]> wrote:
> Dan Feltey
> - collapsible contracts

The contact system supports collapsible contracts, which avoid
repeated wrappers in certain pathological situations. Thanks to Daniel
Feltey.

> Robby Findler / Laurent Orseau
> - Quickscript integration to DrRacket

Quickscript, a scripting tool for DrRacket, is part of the standard
distribution. Thanks to Laurent Orseau.

> Max New
> - but-not/e: 0827ef347dcc17788de64bb48d5e53d66cebcdac @ data

The data/enumerate library supports a different form of subtraction
via but-not/e, following  Yorgey and Foner's ICFP'18 paper. Thanks to
Max New.

The letrec.rkt example model in Redex has been changed to more closely
match Racket, which led to some bug fixes in Racket's implementation
of letrec and set!.

Robby

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