On behalf of the developers of ABCL (Armed Bear Common Lisp) I'm glad to be able to announce the 0.18.0 release.
This release features - among lots of other things - faster initial startup, faster special variable lookup and portable fasl files. Please refer to the release notes for the full list.
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 (zip signature file) or gzipped tar (tar signature file) format.