The main change in Version 0.8 is that we have open-sourced all of the extensions. Extensions are Python modules which enable TKET to work with different quantum devices and simulators, and provide integration with other quantum software tools. Extensions are available for all the main quantum hardware and software platforms.
Open-sourcing allows for more transparency of the code, easier reporting of issues and more robust integrations. Members of the quantum software community will now be able to make their own contributions, or take inspiration and develop their own extensions, under the permissive Apache 2.0 license.