⚠️ Starting with release 4.5.0-alpha003, users are no longer required to install the Java Runtime in order to compile .NET applications using ANTLR 4. However, installing Java will dramatically improve the performance of the code generation process. It is highly recommended, especially on developer machines where background code generation is used for IntelliSense functionality. The C# target for ANTLR 4 uses Java for compiling applications. The resulting compiled C# applications will not require Java to be installed. You can install any of the following versions of Java to use this target.