| [][upgrade-guide] [**Upgrade**][upgrade-guide] guides | User and developer information for upgrading cases and code to more recent releases |
| [][upgrade-guide] [**Upgrade**][upgrade-guide] guides | User and developer information for upgrading cases and code to more recent releases |
| [](/running) [**Run**](/running) OpenFOAM | Using the OpenFOAM environment |
| [](/running) [**Run**](/running) OpenFOAM | Using the OpenFOAM environment, [shell session](/running/shell-session), [openfoam-selector](/running/openfoam-selector) |