# DuckPlus documentation

DuckPlus pairs typed expressions with immutable DuckDB relations to keep analytics
pipelines debuggable. The documentation is versioned so changes in each release
stay easy to follow.

```{toctree}
:maxdepth: 2

versions/1.4/index
versions/1.3/index
versions/1.2/index
versions/1.1/index
versions/1.0/index
```

```{toctree}
:maxdepth: 1
:caption: Contributor guides

contributing
function_namespace_generator_retirement
```

```{toctree}
:maxdepth: 1
:caption: Language server compatibility

language_server_demo
ty_language_server
```

```{toctree}
:maxdepth: 2
:caption: Repository resources

repository-map
```

Use the version switcher in the navigation bar to browse documentation for
older releases once they are published.