Racket v9.3
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- The `raco setup` command can generate markdown documentation, using
the `--doc-markdown` option.
- The "#lang" teaching languages (BSL, ..., ISL+; plus DeinProgram)
have reached parity with the ones chosen using the Language dialog,
and are the recommended choice.
- DrRacket's background expansion disables errortrace annotations, for
faster syntax checking.
- The `raco pkg install` command includes new options that provide
more install-time configuration flexibility: `--adjacent-deps`,
`--destdir`, and `--attach`, and a refined `--skip-installed`.
- The `ffi/unsafe/runtime-lib` library provides a `define-runtime-lib`
mechanism similar to `define-runtime-path`, allowing location of
libraries located relative to a source file.
- The `prompt-tag/c` contract generator no longer performs checking on
`call/cc` when the `#:call/cc` option is not present.
- The `impersonate-prompt-tag` function takes an additional argument
that allows checking and update of results for composable
continuations.
- The `error-syntax->srcloc-handler` parameter provides control over
the mapping from syntactic forms to source locations for error
handling.
- Uses of `(tcp-listen 0)` will retry when it fails with "address in
use".
- The `racket/base` module requires fewer internal modules and
instantiations.
- The `file/zip` package provides a new mechanism for greatly
increased control over zip file generation, allowing in-memory file
sources and per-file compression control.
The following people contributed to this release:
Alex Knauth, Alexander Shopov, Aris Spathis, Bert De Ketelaere, Bob
Burger, Caleb Mazalevskis, Cameron Moy, Geoffrey J. Teale, Gustavo
Massaccesi, Hannes Braun, Jade Sailor, Jason Hemann, Jens Axel
Søgaard, John Clements, Jordan Johnson, Matthew Flatt, Matthias
Felleisen, Mike Sperber, Nathan Dykman, Noah Ma, Philip McGrath,
Robby Findler, Romeo Ahmed, Sam Tobin-Hochstadt, Shu-Hung You,
Stefan Schwarzer, Stephen De Gabrielle, and Wing Hei Chan.
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