[sirup7]

Thank you very much for your fast answer.

I tried to figure out which plugins are 2.0 and which are 1.0. I somewhere read that all Plugins in the WordPress repository are 2.0? Those which are not listed in the WP repository are 1.0.

For example I tried to install these..
https://wordpress.org/extend/plugins/bbpress-quotes/ (This one should work fine?)
https://bbpress.org/plugins/topic/edit-history/ (This will be too old, right?)

Thank you