Syntax changed so that it looked a lot more like other languages: $x = 10 $y = 15  $z = $x + $y  print($z)  To improve performance, the Real Math Mode parser was replaced by the Logical And Mathematical Parser (LAMP) in 2016 and then the Logical And Mathematical Evaluator (LAME) in 2019. ZPE/YASS rely on libraries being developed to extend functionality. The main reason behind this is to reduce the size of the main runtime package. Certain libraries are written in the YASS language itself and then compiled. They are then distributed via the ZULE network which was added in 2018. Other libraries are written in native Java. For example, the zpe_mysql library is used to add MySQL functionalities to the language through the use of a library which itself is around 6 times the size of the original runtime.