> For the complete documentation index, see [llms.txt](https://alexander-rogalsky.gitbook.io/kotlin-patterns/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://alexander-rogalsky.gitbook.io/kotlin-patterns/units/data-types.md).

# Data Types

## Kotlin Type Hierarchy and Range Checking

{% hint style="info" %}
Kotlin data types should be considered stable after last major release.
{% endhint %}

![Kotlin data types](/files/-MR7jG7Kt1yHi1ipZ7_l)