First, "sone206upart03rar" looks like a filename or part of a filename. "Sone" might be a username or part of a name. Then "206", "upart03rar"—probably the file is part of a RAR archive. RAR files can be split into multiple parts, so "part3" makes sense. The "new" at the end suggests they might be asking about a new version or a new file.