Features improve compression on class definition (aed758e) mangle class field and method (10fbf8e) Bug Fixes class literal (1947a21) for loop (a37ca55) immediately invoked function expression (0df0281) import.meta (cf38b52) lexical declaration (8a82822) new operator (e755d01) object method (cea1fb5) octal number syntax (b179a24) spread syntax (ebe4e1a) try statement (ca49f6f)