[racket] Racket forward compatability

Don, we have no absolute commitment to backward compatibility but we rarely break it and, when we do, we try to support the transition. [We use every feature in our language so we need those transition tools and are happy to support others.] 

See Neil's response. He's a power user -- Matthias





On Apr 28, 2013, at 8:33 PM, Don Green wrote:

> Is there any assurance3 that a program written with Racket wil work with a future version of Racket?  I expect the short answer is: No.
> Any related comments are appreciated.
> I am using Racket version 5.2.1.
> I have found that regexp functions are too slow for large data files but maybe newer versions have made a change that would speed things up.  (I read something about some solution from github but I am not sure that is something I should look into.)  I'd rather just install a new version of Racket at an appropriate stage, namely when my current project development has concluded.  My current work around is a call to an external program which provides the regexp function at the speed needed.
> Thanks for any comment(s).
> Don Green
> 
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