I look at a project under MPL 1.1. Can I take the source and re-distribute it under MPL 2.0 without any modification or contribution? That is, I am not a contributor (not the initial, not in the past, not in the future).
Some other licenses (Apache) seem to state clearly the unmodified parts (in this context: all parts) retain their original license. For MPL 1.1 -> 2.0 (or any other license), I miss such a statement. Is there a difference between a version upgrade (1.1 -> 2.0) and a license change (MPL 1.1 -> Apache).