docs/dev/r/articles/install_nightly.md

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# Installing development versions

Users of the arrow package will typically want to use the latest release
version of the package, but may occasionally require a development
build. Arrow developers are more likely to need the current development
version. In this article we describe the process for installing the
development version.

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## Install nightly builds

Development versions of the package (binary and source) are built
nightly and hosted at <https://nightlies.apache.org/arrow/r/>. These
nightly package builds are not official Apache releases and are not
recommended for production use. They may be useful for testing bug fixes
and new features under active development.

To install arrow from there, use the following command:

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``` r
install.packages("arrow", repos = c(arrow = "https://nightlies.apache.org/arrow/r", getOption("repos")))
```

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Conda users can install arrow nightly builds with:

``` shell
conda install -c arrow-nightlies -c conda-forge --strict-channel-priority r-arrow
```

If you already have a version of arrow installed, you can switch to the
latest nightly development version as follows:

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``` r
arrow::install_arrow(nightly = TRUE)
```

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## Install from git repository

An alternative way to obtain a development versions is to install the R
package from a git checkout. To do so, type the following at the
terminal:

``` shell
git clone https://github.com/apache/arrow
cd arrow/r
R CMD INSTALL .
```

If you don’t already have libarrow on your system, when installing the R
package from source, it will also download and build libarrow for you.
See the links below for build environment variables for options for
configuring the build source and enabled features.

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## Further reading

-   For users looking for information about installing on Linux, see the
    [Linux installation
    article](https://arrow.apache.org/docs/r/articles/install.md).
-   For developers looking to understand the installation scripts, see
    the [installation details
    article](https://arrow.apache.org/docs/r/articles/developers/install_details.md).

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