zhenglibao
diff --git a/‎CHANGELOG.md‎
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diff --git a/‎Doc/res/FlexCompiler_350‎
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diff --git a/‎Doc/res/FlexCompiler‎ ‎Doc/res/FlexCompiler_400‎Doc/res/FlexCompiler renamed to Doc/res/FlexCompiler_400 b/‎Doc/res/FlexCompiler‎ ‎Doc/res/FlexCompiler_400‎Doc/res/FlexCompiler renamed to Doc/res/FlexCompiler_400
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 ## 4.0.0
-1.采用新的flex文件格式，flex布局文件大小减少80% (需要更新xml编译器FlexCompiler，位于Doc/res/FlexCompiler)
+1.采用新的flex文件格式，编译后的flex布局文件大小减少80% 
+(需要更新xml编译器FlexCompiler，位于Doc/res/FlexCompiler_400，老版本请使用FlexCompiler_350编译器)
 2.增加内存缓存，提升release模式下的加载性能
 3.其他性能优化
+该版本的加载性能与3.5.0相比提升10~50%
 
 ## 3.5.0
 1.所有xml中的颜色支持设置动态颜色