We improved the path creation toolsets and procedures of transition management to create more detailed pathways and analyses of pathway step interrelations. The system has facilitated and anchored well the discussions by participants with cross-sectoral backgrounds. Overall, the redesigned system underscores the potential that codesign for sustainability transitions holds.

We aim to bring more clarity to the topic of intermediaries in transitions by providing a definition of transition intermediaries and a typology of five intermediary types that is sensitive to the emergence, neutrality and goals of intermediary actors as well as their context and level of action. We argue that systemic and niche intermediaries are the most crucial forms of intermediary actors in transitions, but they need to be complemented by a full ecology of intermediaries.

This article provides an extensive review and an updated research agenda for sustainability transitions, classified into nine main themes. The review shows that the scope of this field of research has broadened and connections to established disciplines have grown stronger. At the same time, we see that the grand challenges related to sustainability remain unsolved, calling for continued efforts and an acceleration of ongoing transitions.

This paper outlines the basic principles of ‘biographies of artifacts and practices’ (BOAP) and its significant variations, and discusses its contribution to STS understandings of innovation, especially user roles in innovation. We finish by arguing that if STS is to continue to provide insight around innovation this will require a reconceptualisation of research design, to move from simple ‘snap shot’ studies to the linking together of a string of studies.