The current release is 0.9.7 (Imbolc), released 2018-02-16. Using Quicklisp is a preferred way to run McCLIM.
The project page for McCLIM contains information about the mailing lists, code repository, and development.
(ql:quickload 'mcclim) (ql:quickload 'clim-examples) (clim-demo:demodemo)