xREL.v3

The didn´t remove the star requirement, they reduced it 
from 3 average to 2.5 average. According to the patch notes that 
is. Here is the full copy/paste:

Gameplay

- The dash has been reworked to be safer to use. It now gets 
  extended if you are still hurtling towards an enemy at high speed.
- More checkpoints and level tweaks, mostly in world 3.
- Getting hit while shielded and twirling now allows you to do a new 
  dash or twirl, just as if you had defeated an enemy.
- Lowered the number of stars required to unlock a boss level from 
  an average of 3 stars per level to 2.5 stars per level.
- Each world now has stars of a different color to communicate that 
  stars don’t carry over from world to world.

Bug Fixes

- Jumping on enemies’ heads no longer has a slim chance of killing 
  you unfairly and now is 100% safe.
- The dash behaviour now is consistent across all framerates.
- Bumpers trigger more reliably now.
- Giana can no longer be pushed sideways into a moving box.
- Fixed an issue where the gum bubble could automatically burst 
  after a few seconds.
- Rabbit projectiles now properly hit Giana if both are standing at the 
  same height.
- Giana no longer falls through trampolines if she is twirling.
- Level 3-10 now has and counts the proper amount of master 
  gems.
- Giana now loses her shield on respawn if she gets crushed by a 
  gate.
- Fixed a graphical glitch with the Piercing Eye enemy.
- Fixed minor interface/display issues.
- Fixed minor SFX issues.