Sass 3.4.14 发布，该版本改进记录： Further avoid race conditions when caching. Only emit one warning for each line that uses the deprecated form of unquote(). Stop parsing and emitting invalid @supports directives. Add a deprecation warning for using != to compare a number with units to a number without. Such a warning already existed for ==. Improve rounding of the results of color operations. 此版本现已提供下载：https://github.com/sass/sass/archive/3.4.14.zip Sass 扩展了 CSS3，增加了规则、变量、混入、选择器、继承等等特性。Sass 生成良好格式化的 CSS 代码，易于组织和维护。 Sass 3.4.14 发布，CSS 框架下载地址
