

All changes made to the present chamber will be retained when you jump to the future, while changes to the future version are independent and don’t affect the present.

More importantly, it includes a brand new feature unique to this installment: A third portal, used to jump between the present and future versions of test chambers. Portal: Reloaded, the community-made Portal 2 mod released in mid-April, features 25 brand new chambers for Portal fans.
