# Source Serif [Source Serif](https://adobe-fonts.github.io/source-serif/) is an open-source typeface to complement the [Source Sans](https://github.com/adobe-fonts/source-sans-pro) family. ## Source files The fonts’ source files and build instructions are available in the [repository’s `main` branch](https://github.com/adobe-fonts/source-serif/tree/main). ## Getting involved Please [open an issue](https://github.com/adobe-fonts/source-serif/issues) to start the discussion. ## Releases * [Latest release](../../releases/latest) * [All releases](../../releases) ## Design information * [Blog post on the introductory release of Source Serif](https://blog.typekit.com/2014/05/20/source-serif-pro/) (2014) * [Blog post on the six-weight extension](https://blog.typekit.com/2014/12/11/source-serif-update-three-new-weights/) (2014) * [Source Serif 2.0](https://blog.typekit.com/2017/01/10/introducing-source-serif-2-0/) (2017) * [Source Serif Italics](https://blog.typekit.com/2018/08/16/source-serif-italics/) (2018) * [Source Serif 4](https://blog.adobe.com/en/publish/2021/03/04/source-serif-gets-optical-sizes.html#gs.6de1ff) (2021) For general information about the design and background of Source Serif, plus some technical information, please refer to the [official font readme file](https://github.com/adobe-fonts/source-serif/wiki/Source-Serif-Readme).