Racket v9.1
posted by Stephen De Gabrielle and John Clements
We are pleased to announce Racket v9.1 is now available from https://download.racket-lang.org/.
As of this release:
Documentation organization and navigation can be specialized by language family, to allow users to interact with documentation in a way that is tailored to that language family. This is currently used by Rhombus.
The for form and its variants accept an #:on-length-mismatch specifier. 3.18 Iterations and Comprehensions: for, for/list, …
form and its variants accept an specifier. 3.18 Iterations and Comprehensions: for, for/list, … DrRacket improves the GUI for choosing color schemes.
DrRacket has curved syntax arrows. The degree of curvature indicates the relative left- or right-displacement of the arrow’s target.
DrRacket’s “Insert Large Letters” uses characters that match the comment syntax of the buffer’s language, making it useful (and fun!) in Rhombus.
The exn-classify-errno maps network and filesystem error numbers on various platforms to posix-standard symbols, to enable more portable code. 10.2 Exceptions
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