After many years of good services from Redmine, we feel like our growing community needs require an issue reporting infrastructure that we cannot provide at the moment given our limited infrastructure.
As such, we will rely on Github's incredibly reliable infrastructure and move all new issues there. If you don't have a Github account yet, you can create a new one easily using just your e-mail address and a username (look for the "Sign up" button on https://github.com).
This move should give us, developers, more time to attend your issues, and should give you, our contributors, a faster and more available platform. That's a win-win situation for us.
We will take some time (probably around 1 year) to move all unclosed issues to Github. In the meantime, you can continue interacting on old issues through support.chamilo.org, as always.
Thank you for trusting our decision process and for contributing to chamilo.