What happened to full screen mode?

[SteelBlueTJ]

After updating to Yosemite, I noticed the little icon is gone to activate full screen mode. Where is it in yosemite?

 

[DeltaMac]

Clicking on the green button gives you full screen mode.
Otherwise, the old-style zoom is available simply by holding Option/alt, then click on the green button

 

[ps3zocker]

After updating to Yosemite, I noticed the little icon is gone to activate full screen mode. Where is it in yosemite?

The green button on the left side now triggers fullscreen (previously it was zooming the window up).