- Support #9: Modify visibility option in Boost - Bug #10: The specified compiler in the script was not actually used for Boost; fixed now. - Support #12: Upgrade to gcc 10 Ubuntu Docker images. - Support: PETSc: Add 'download-cmake' in PETSc script as the one installed by apt is not a recent enough version. - Bug #11: PETSc 3.16 doesn't seem to work well on macOS with framework Accelerate. A prompt has been added in the script to warn use about this and encouraging him to use Openblas instead. - Openblas: 0.3.15 -> 0.3.17 - Openmpi: 4.1.1 -> 4.1.2 - Petsc: 3.14.4 -> 3.16.2 - Xsimd: 7.4.9 -> 8.0.5 - Xtensor: 0.23.10 -> 0.24 - Xtensor-blas: 0.19.1 -> 0.20.0