Genode OS 14.02 features the ability for VirtualBox to run on top of their NOVA micro-hypervisor and there's support for NetBSD's file-systems. There's also been a revamp of Genode's storage handling and a new block cache. Block level components of Genode OS are now able to work asynchronously.
Support for NetBSD file-systems was added to Genode OS by developing "rump kernels" that allow the execution of NetBSD kernel subsystems at the user-level as Genode components.
More details on Genode OS 14.02 can be found via the release notes.