This was a big year for DAX, with the public preview that started in September for two new features: user-defined functions (UDFs) and calendar-based time intelligence.
The user-defined functions are the most significant update to the DAX language since 2015, when Microsoft introduced variables. Can you believe that for more than five years we had to write DAX code without variables? Well, the user-defined functions we just mentioned will have an even bigger impact in the long term.
Read on for more information on key additions, new DAX functions, and all of the neat stuff that the SQLBI team put together this year.