As announced in the VTK 9.4.0 Release release thread, VTK v9.4.1 has been released.
Repository has been tagged.
Tarballs here: https://vtk.org/download/.
Wheels are available on pypi as well: https://pypi.org/project/vtk/9.4.1/
No further patch release is planned at the moment.
See this thread for info about the next minor release: VTK 9.5.0 Release