Free and open source software development: the end of the teenage years

This thematic series of the Journal of Internet Services and Applications (JISA) presents a collection of articles around the broad topic of the development of Free and Open Source Software (FOSS). This series illustrates the diversity of topics that are related to FOSS – we received submissions from many different areas; for example, dealing with communication and coordination within FOSS communities, licensing, adoption of Kanban in FOSS settings, and the use of an open model in the editorship of standards. Moreover, the studies presented were conducted using data collected from different sources, including software repositories, mailing lists, interviews, questionnaires and field notes, and were analysed using quantitative and qualitative methods, including case studies and action research methods.