What's the difference between SCSS and Sass?

Question

From what I\'ve been reading, Sass is a language that makes CSS more powerful with variable and math support.

What\'s the difference with SCSS? Is it supposed to be

Answer 1

Sass was the first one, and the syntax is a bit different. For example, including a mixin:

Sass: +mixinname()
Scss: @include mixinname()

Sass ignores curly brackets and semicolons and lay on nesting, which I found more useful.