This paper is divided into three parts.
The first explores attempts to capture and describe how volunteering has changed over the years. This section examines the dominant conceptualizations of volunteering as a social practice and explores how research has taken into account the contribution of volunteering to the Sustainable Development Goals (SDGs) and the 2030 Agenda.
The second section briefly revisits the 1999 typology and discusses how it can be revised and updated in light of the changes described.
Finally, the third section presents a framework for understanding volunteering practices in the twenty-first century and raises some critical questions for further discussion.