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