Please upgrade the packaged version of geogebra

Unfortunately geogebra 4.2 doesn't appear to be free software anymore. Please see some more details at http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=692728.

I'm very sorry of this and already tried to get in touch with GeoGebra upstream developers to have this decision changes. But unfortunately I have to say that the way they answered (or didn't do it) leads me to thinking it won't be easy. :-(

Damn.

Well anyway a solution could be to distribute a package that just downloads
the geogebra-tem packaged deb-file. Similar to what is done for adobe
flashplayer.

Or am I missing the point ? .... :)

Well, in theory you could. Actually, at least in Debian you should be able anyway ship GeoGebra in the non-free part (I'm not sure, I should check the licenses more carefully to be sure that Debian is allowed to distribute the resulting binary blob). Probably the same applies to Ubuntu, although I'm not completely confident with Ubuntu packaging policies in multiverse.

But I have to say I'm not very motivated to do that. I don't like spending time on non free software packages. I may reconsider this decision, but for the moment I'm not doing anything (of course I won't stop at all other people willing to work on that and in case someone wants to step up I'll do everything I can to makes their way as smooth as possible).

Sorry for that. :-(

Geogebra is no longer as free as it used to be making it problematic to package new versions.

Licensing does not allow an upgrade.

Latest GeoGebra Classic 6 version can be installed from "official" Geogebra repository, see:

https://wiki.geogebra.org/en/Reference:GeoGebra_Installation#GeoGebra_Classic_6

the .deb and .rpm installers will automatically add the official GeoGebra repository to the package management system on the workstation. This will enable automatic update of GeoGebra every time a new version is released. If you want to include GeoGebra in your custom Linux distribution with GeoGebra included, the best way is to add the official GeoGebra repository (http://www.geogebra.net/linux/) to your package management system. The GPG key of the repository is at https://<email address hidden> - the name of the package is geogebra-classic.
 Installing GeoGebra directly from the command line: for Ubuntu, these two commands eliminate the need for downloading .deb files:

   $ sudo apt-add-repository -u 'deb http://www.geogebra.net/linux/ stable main'
   $ sudo apt install geogebra-classic