Changelog: https://blog.kitware.com/vtk-8-2-0/
science/liggghts fails with vtk-8.2.0: https://www.cfdem.com/forums/ligggts-doesnt-build-witth-vtk-820
graphics/vv fails with vtk-8.2.0: https://github.com/open-vv/vv/blob/master/cmake/dependencies.cmake#L16
These two are show-stoppers, vtk-8.2 can't be updated because of these issues.
Correction: graphics/vv fails with vtk-8.2.0: https://gitlab.kitware.com/vtk/vtk/issues/17519
math/vtk8 is already at 8.2.0.