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+# CMUCL 21e
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+
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+## Work in prograss
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+
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+The CMUCL project is pleased to announce the release of CMUCL 21e.
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+This is a major release which contains numerous enhancements and bug
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+fixes from the 21a release.
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+
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+CMUCL is a free, high performance implementation of the Common Lisp
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+programming language which runs on most major Unix platforms. It
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+mainly conforms to the ANSI Common Lisp standard. CMUCL provides a
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+sophisticated native code compiler; a powerful foreign function
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+interface; an implementation of CLOS, the Common Lisp Object System,
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+which includes multi-methods and a meta-object protocol; a
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+source-level debugger and code profiler; and an Emacs-like editor
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+implemented in Common Lisp. CMUCL is maintained by a team of
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+volunteers collaborating over the Internet, and is mostly in the
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+public domain.
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+
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+## New in this release:
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+ * Known issues:
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+ * Building with gcc8 or later doesn't work with the default -O option. Use -O1 instead. This shouldn't really impact overall speed much.
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+ * Added simple support to compile with clang instead, which works. (Use x86_linux_clang).
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+ * Feature enhancements
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+ * Update to ASDF 3.3.3
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+ * Changes
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+ * ANSI compliance fixes:
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+ * Bug fixes:
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+ * Gitlab tickets:
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+ * ~~#73~~ Update clx from upstream clx
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+ * Other changes:
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+ * Improvements to the PCL implementation of CLOS:
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+ * Changes to building procedure:
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+
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+This release is not binary compatible with code compiled using CMUCL
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+21d; you will need to recompile FASL files.
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+
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+See http://www.cmucl.org or
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+https://gitlab.common-lisp.net/cmucl/cmucl for more information,
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+See
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+https://gitlab.common-lisp.net/cmucl/cmucl/wikis/GettingCmucl
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+for obtaining CMUCL, including sources and binaries..
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+
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+
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+We hope you enjoy using this release of CMUCL!
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