Here you can download automated builds of the latest development version of RawTherapee for Linux (AppImage) and Windows (installer and stand-alone zip). Signed-in GitHub users can download older or additional build artifacts from the GitHub Actions page.
Release builds are optimized for speed while debug builds are useful for diagnosing crashes (see How to Write Useful Bug Reports).
DISCLAIMER: While the development version is generally crash-free, and can often be used as a simple drop-in replacement for the latest release version, there is no guarantee that existing or added functionality will stay the same in the future. Backwards compatibility is provided with the latest release version, not between development builds. Always use at your own risk.
For more information, please see RawPedia. To build RawTherapee yourself, do not use the provided source code archives from this release as they lack some metadata.