[Overleaf](https://www.overleaf.com) is an open-source online real-time collaborative LaTeX editor. We run a hosted version at [www.overleaf.com](https://www.overleaf.com), but you can also run your own local version, and contribute to the development of Overleaf.
*[If you want help installing and maintaining Overleaf in your lab or workplace, we offer an officially supported version called Overleaf Server Pro. It also comes with extra security and admin features. Click here to find out more!](https://www.overleaf.com/for/enterprises)*
If you are upgrading from a previous version of Overleaf, please see the [Release Notes section on the Wiki](https://github.com/overleaf/overleaf/wiki/Home) for all of the versions between your current version and the version you are upgrading to.
Please see the [CONTRIBUTING](https://github.com/overleaf/overleaf/blob/master/CONTRIBUTING.md) file for information on contributing to the development of Overleaf. See [our wiki](https://github.com/overleaf/overleaf/wiki/Developer-Guidelines) for information on setting up a development environment and how to recompile and run Overleaf after modifications.