Ok, so finally here is the release. It adds Delphi support, which is not a limited set like in lcms 1.x but a complete wrapper. Every single function in the lcms API is now accesible from Delphi.
lcms 2.1 fixes a number of bugs, adds support for duotone (thanks to a contributor who wants to remain anonimous), resurrects cmsChangeBufferFormat and some features like 2-channels formatters. See the changelog for a complete list of fixes and additions.
One important thing about 2.1 is that it has been reviewed for vulnerabilities(Thanks Chris!) so it may be a good idea to upgrade from 2.0 whatever possible. The transition should be smooth as 2.1 is backwards compatible with 2.0.
Now I'm ready for 2.2 :-)