13th Seminar Series on Advanced Techniques & Tools for Software Evolution. http://sattose.org/2020 July 1-2, 2020 Virtual Conference Overview: The 13th edition of SATToSE will be held virtually (originally planned to take place in Amsterdam) on 1-2 July 2020. Past editions of SATToSE saw presentations on software visualisation techniques, tools for co-evolving various software artefacts, their consistency management, runtime adaptability and context-awareness, as well as empirical results about software evolution. The goal of SATToSE is to gather both undergraduate and graduate students to showcase their research, exchange ideas, improve their communication skills, attend and contribute technology showdown and hackathons. Keynotes: SATToSE 2020 will host 2 keynotes, one on July 1st and one on July 2nd by Anne Etien and Tom Mens. Venue/Program: All sessions will take place on Zoom (provided by the University of Amsterdam). You can find a tentative program and accepted papers on the SATToSE website. Hackathon: The Software Improvement Group (SIG)<https://www.softwareimprovementgroup.com/> will host the SATToSE 2020 hackathon with call graph data in the context of the FASTEN project<https://www.fasten-project.eu/view/Main/>. More information will follow soon. Registration: The registration link can be found under Registration at http://sattose.org/2020. SATToSE 2020 will be a virtual event, meaning that there is no registration cost. However, registration is necessary to participate to SATToSE 2020. Organization General Chair: Ana Oprescu, University of Amsterdam, The Netherlands Program Chair: Eleni Constantinou, Eindhoven University of Technology, The Netherlands Hackathon Chair: Magiel Bruntink, SIG, The Netherlands