ClojureScript depends on the Google Closure JavaScript Libraries, but Google does not publish those libraries in a Maven repository. The github action in this repo generates Maven projects for the Google Closure Library and, optionally, deploys them.
The Google Closure Libraries are divided into two parts: the main library and third-party extensions. The main library is Apache licensed; the third-party extensions have a variety of different licenses. However, code in the main library depends on the third-party extensions, not the other way around. See CLJS-418 for details.
To manage this, we build two JARs, google-closure-library and google-closure-library-third-party, with the former declaring an explicit dependency on the latter. This permits consumers to exclude the third-party libraries (and their various licenses) if they know they don't need them.
To match this structure, we need to alter the deps.js file that the Google Closure Compiler uses to resolve dependencies. See CLJS-276 for details.
The last release ZIP made by Google was 20130212-95c19e7f0f5f. To get newer versions, we have to go to the Git repository.