Using HDF5 in 2018.1

I recently updated to 2018.1 and am having trouble using the HDF5File function. When I try to load a file using HDF5File I get the following,

module ‘dolfin’ has no attribute ‘HDF5File’

There was mention of changes to HDF5 in the changelog so I am unsure if the syntax has changed or if it is a problem with my installation. Does anyone have any ideas?

Dear Jared,

Could you please explain to me how you installed FEniCS.

Launching a docker image with the latest stable release:

docker run -ti --rm -v $(pwd):/home/fenics/shared quay.io/fenicsproject/stable:latest

running ipython3 and the following command:

import dolfin
dolfin.__version__
dolfin.HDF5File

Should yield 2018.1.0 and dolfin.cpp.io.HDF5File