- Since [OpenFOAM-v1712](https://www.openfoam.com/releases/openfoam-v1712), community contributions may be included using the [git submodule system](https://git-scm.com/book/en/v2/Git-Tools-Submodules). To initialise the submodules located in the [$WM_PROJECT_DIR/modules](https://develop.openfoam.com/Development/openfoam/tree/master/modules) directory:
- Since [OpenFOAM-v1712][v1712-notes], community contributions may be included using the [git submodule system](https://git-scm.com/book/en/v2/Git-Tools-Submodules). To initialise the submodules located in the [$WM_PROJECT_DIR/modules](https://develop.openfoam.com/Development/openfoam/tree/master/modules) directory: