-You now no longer can trap yourself on the lightbridge.
-You now no longer can trap yourself by touching the fizzler in the exit area.
-You now no longer can trap yourself by shooting both portals on the same surface in the exit area.
*It is now easier to kill the turrets.
*Shooting the "wrong" portal or getting trapped in the exit area now don't require solving the puzzle again.

*Edited the puzzle itself by making it a fizzler/laser puzzle with timing as the main element.