Of course, installation is simpler with YUM :

yum --enablerepo=remi install glpi

If you still prefer to download : the repository

Don't forget extensions also available in RPM :

And all the other extensions (only available as archive).

For memory, you can read the OCS and GLPI installation guide, spécialement écrit pour l'utilisation des RPM.

This is the new major version of GLPI project, with a lot of new features.

It is recommended to test migration and try new features in a testing environment.