This is a clone of (apparently orphaned) as of July 2016 with some extra patches added (see timeline).

The origin of patches so far is:

While I'm not volunteering to maintain tclreadline, issues and (especially) patches raised on the fossil ticket system (see top menu) will be considered. And I'll avoid putting breaking changes on trunk. With some encouragement (preferably testing and clean, small patches), I might be persuaded to tag a release and make a tarball directly downloadable.

Medium term, this package should probably be rewritten from scratch (it's really not much code) to take advantage of Tcl 8.5+ features and present a cleaner interface able to operate on arbitrary channels.