The release announcement sketch that I have so far is below. Please
mail me new items and/or edits.
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Racket version 6.1.1 is now available from
http://racket-lang.org/
* Mac OS X Yosemite: fixed compatibility problems, mainly by patching
the Pango text-drawing library that is bundled with Racket.
* Windows, 32-bit version: fixed window-update crashes by patching
the Cairo drawing library that is bundled with Racket.
* Windows: made the GUI library DPI-aware.
* Added a "binary library" installation mode to install packages
without source or documentation. Use the `--binary-lib` option
with `raco pkg install`.
* Repaired the compiler's use-before-defined analysis for certain
forms of nested `letrec`, some `let` forms, and some uses of
`set!` or `with-continuation-mark`.
* Added bytecode optimizations (thanks to Gustavo Massaccesi).
* Added a `replace-evt` event constructor (as suggested by Jan Dvořák).
* Added the drracket/check-syntax library to facilitate check
syntax-like behavior in other IDEs.
* Redex: explained the benchmark programs added a conditional-form
to metafunctions.
* 2htdp/image's notion of equality no longer considers an image's
baseline.
* Contracts: contract-stronger? is now more consistently useful
and contract error messages now admit the contract itself might
be wrong.
* Exception handling changed to be safe. This may break existing
programs that rely on unsafe behavior.
* Casts and predicates are supported in typed regions.
* The `openssl' library supports Server Name Indication for server
contexts (thanks to Jay Kominek).
* The `syntax/parse' library allows the definition of new pattern
forms via pattern expanders, similar to match expanders (thanks
to Alex Knauth).
* For OpenGL on Linux, removed dependence on libgtkgl and added
support for core profiles (see `set-legacy?`).
* The unit test framework for the *SL teaching languages supports
check-satisfied, a construct for checking whether a result
satisfies a named predicate, e.g.:
(check-satisfied (sort l) sorted?)
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