[racket-dev] Release Announcement for v5.3

If we're going to include the contract related bullets below, then we
should probably mention struct/dc, too. But I think this is too many
bullets for this amount of stuff. How about something like this:

 - the contract library has better support for interfaces, generics,
prompts, continuation-marks, and structs

and then put those bullets, plus a bullet for struct/dc into the
racket HISTORY file (if they're not already there).

Robby

On Thu, Jul 26, 2012 at 2:40 PM, Asumu Takikawa <asumu at ccs.neu.edu> wrote:
> On 2012-07-25 13:26:53 -0400, Ryan Culpepper wrote:
>>  - add contracts to interfaces (6f4ad1de)
>
>    "Interfaces from the racket/class library now allow
>     contracts to be specified for methods. Instances
>     of classes that implement such contracted interfaces will
>     be protected by these contracts."
>
>>  - generics (518bf0fd)
>>  - contracts for generics (552d6de9)
>
>    "The new racket/generic library allows the definition of
>     generic functions, which will dispatch to methods added
>     to a structure type. Methods can be added to structure
>     types using the new #:methods keyword."
>
>>  - prompt/c, continuation-mark-key/c (de5c756d, 095d47fc)
>
>    "Contracts can now be applied to continuation prompt tags
>     or continuation mark keys, which will respectively
>     guard the use of control operators or access to data
>     stored in continuation marks.
>
>>  - abstract methods (06091079)
>
>    "The class form now supports declaring a method abstract.
>     An abstract method prevents a class from being instantiated
>     unless it is overriden."
>
>>  - mzlib deprecation notices (e4141077)
>
>   "The mzlib/class100 library has been deprecated and will be
>    removed in the first release after June 21, 2013"
>
>   (the rest of the deprecation notices are just for documentation
>    since we don't have any plans to remove them)
>
>>  - class/c changes (3eb963f6)
>>  - class contracts for racket/draw, racket/snip (30311058, 2e1d59f7)
>
>    These are probably not worth including.
>
> Cheers,
> Asumu
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