Description: ------------ I would love to print some general information or even how did the installation gone (which files went where) when a package is installed. Some important stuff like command line tools and web front end can be installed without user's notice, if they don't take some time to read docs or release notes. That could be avoided if package.xml could handle some dynamic echos after installing/upgrading. Maybe a post-install task that runs independent of the user's request ?

When installing multiple packages, output of echo tasks should be collected and displayed at the end.

Instead of a post-install task, maybe there could be just a section in package.xml <notes> (or whatever) that would be printed out (whenever present) after any install/upgrade ? That would not make it possible to echo dynamic messages, like whether file X has being installed to. But it would be still very handy.