This dataset contains the data analyzed on the paper: Hudson Borges and Marco Tulio Valente. On the Popularity of Modern Open Source Software. Submitted to Journal of Systems and Software (JSS), 2018. Files: cdf.csv: Cumulative distribution function data. contributos.csv: List of contributors of the repositories. developers_perceptions.csv: Survey of Developers' Perceptions on Growth Patterns. factors.[activity,owner,repository].csv: Additional information of the analyzed repositories and their owners. growth_patterns.zip: A compressed file containing the output of the KSC algorithm (time series clusters). motivations_for_starring.csv: Developers' motivations for starring projects. owners.csv: Information of the repositories' owners. releases.csv: Releases considered in the study (i.e., major and minor releases only). repositories.csv: Information of the analyzed repositories (e.g., stars, forks, owner, creation date, etc.). timeseries.json: File containing the number of stars gained by week for each repository since their creation.