Like earlier versions, the X++ language remains the main programming language for developing application code for Dynamics 365 for Finance and Operations. For those who don't know what X++ is, it is a native programming language used in the development of Dynamics 365 for Finance and Operations since the beginning of Axapta.

X++ is an object-oriented language with similarities to C# and provides SQL-like constructs for data selection and manipulation. In Microsoft Dynamics 365 for Finance and Operations, the X++ programming language has been modernized to achieve the following:

• Better consistency with other managed languages, such as C#
• Better integration with the managed stack (CIL)
• Some cleanup – fewer quirks and badly defined areas

Let's understand the changes in the X++ programming language.