On behalf of the developers of ABCL (Armed Bear Common Lisp) I'm glad to be able to announce the 0.23.0 release.
ABCL is a Common Lisp implementation implemented in Java and running on the JVM, featuring both an interpreter and a compiler. The compiler targets the JVM directly meaning that its output is runnable JVM bytecode. The fact that ABCL is written in Java allows for relatively easy embedding in larger applications. For integration with existing applications ABCL implements Java Specification Request (JSR) 223: Java scripting API.
This release features - among lots of other things - CLOS thread safety fixes and concurrency improvements, support for Oracle's JRockit JVM, and a new (generic) class file writer. In addition, this is the first release to complete the Maxima test suite without failures, thanks to close cooperation between our projects. You can find the full release notes at:
http://common-lisp.net/project/armedbear/release-notes-0.23.shtml
and the list of changes at:
http://trac.common-lisp.net/armedbear/browser/trunk/abcl/CHANGES
If you have questions regarding use or licensing, or you find issues, please report back to the development list:
armedbear-devel at common-lisp dot net
Source distribution archives can be downloaded in ZIP or gzipped tar form:
http://common-lisp.net/project/armedbear/releases/abcl-src-0.23.0.tar.gz http://common-lisp.net/project/armedbear/releases/abcl-src-0.23.0.zip
Signatures are available under: http://common-lisp.net/project/armedbear/releases/abcl-src-0.23.0.tar.gz.asc http://common-lisp.net/project/armedbear/releases/abcl-src-0.23.0.zip.asc
In addition, binaries are also available:
http://common-lisp.net/project/armedbear/releases/abcl-bin-0.23.0.tar.gz http://common-lisp.net/project/armedbear/releases/abcl-bin-0.23.0.zip
With associated signatures: http://common-lisp.net/project/armedbear/releases/abcl-bin-0.23.0.tar.gz.asc http://common-lisp.net/project/armedbear/releases/abcl-bin-0.23.0.zip.asc