# Axiom Processing Language

Tola Ore-Aruwaji  
Developer Relations Engineer  
February 26, 2022

[**APL datetime fields are now fully supported**](/content/changelog/axiom-processing-language#apl-datetime-fields-are-now-fully-supported/index.html)

Datetime fields are fully supported on APL, literals of type datetime have the syntax **datetime** (`value`), where a number of formats are supported for value.

[Read more here](/content/docs/apl/data-types/scalar-data-types#the-datetime-data-type/index.html)

[**APL: improved support for null types**](/content/changelog/axiom-processing-language#apl-improved-support-for-null-types/index.html)

We have improved support for `null` types, the scalar function [isnull](/content/docs/apl/scalar-functions/string-functions#isnull/index.html) can be used to determine if a scalar value is the null value. The corresponding function [isnotnull](/content/docs/apl/scalar-functions/string-functions#isnotnull/index.html) can be used to determine if a scalar value isn't the null value.

[Read more about this feature here](/content/docs/apl/data-types/null-values/index.html)

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