Compiler and encoding
From 6.7, the compiler has been equiped with a Unicode parser. The core of the parser only accepts UTF-8 source code, for simplicity and generality. Before source code is passed into the core process of parsing, it is preprocessed and converted into UTF-8.
Internals
Abstracted syntax tree now stores STRING_8 as UTF-8 data on each node. There are also different features exporting UTF-8, UTF-32 or the written bytes. Here is an example of how a character é is represented in various levels.