[Chicken-announce] [ANN] CHICKEN 5.3.0 has been released

[Peter Bex]

Dear CHICKEN users,

We are pleased to announce the immediate availability of CHICKEN 5.3.0
at the following URL:
https://code.call-cc.org/releases/5.3.0/chicken-5.3.0.tar.gz

This tarball has the following SHA256 checksum:
c3ad99d8f9e17ed810912ef981ac3b0c2e2f46fb0ecc033b5c3b6dca1bdb0d76

This is a bugfix release which fixes several important issues, and
it is highly recommended to update to this version.

Irregex has been updated to the latest upstream (0.9.10), which fixes
a few issues with bol handling and irregex-replace/all with positive
lookbehind replaces all matches rather than just the first.

A few bugs in the module system's handling of reexport have been fixed,
as well as a few bugs in the optimization of using argvector directly
in rest arguments, and a nasty issue where mutated parameters would be
reset if the mutation happened in a signal handler.

A nice improvement is that to build CHICKEN, on most platforms you no
longer need to provide the PLATFORM variable to Make; we auto-detect
the platform you're building on.  Of course, for cross-compilation
you'll still have to set it.

We tweaked the garbage collector to avoid thrashing when the heap was
almost full.  This should drastically improve performance for certain
usage patterns that trigger this pathological behaviour.

Finally, we fixed a few issues on Windows.  There were some misbehaviours
when using a different shell when building core versus during usage and
the test suite now should pass again under Windows.

Thanks to everyone who helped to test this release.

For a full list of the changes since 5.2.0, see the NEWS file:
https://code.call-cc.org/releases/5.3.0/NEWS

Kind regards,
The CHICKEN Team

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