Replication package. File structure: Readme.md Supplementary_material.pdf: Supplementary figures, codebook and clustering results for RQ1 & RQ2 RQ1: RQ1_1_CoC_repos.csv: Complete list of repositories with CoC RQ1_2_GPT_coding.md: Prompt for coding CoC update types with GPT RQ1_2_clustering_results.csv: RQ1.2 output clustering results data RQ2 RQ2_1_DiD.ipynb: Notebook for DiD analysis to understand the impact of CoC adoption on community engagement RQ2_1_DiD_data.csv: Input data for DiD analysis, consists of control and treatment group data for different ΔT values (1 months, 3 months, 6 months, 9 months, 12 months) RQ2_1_DiD_results.csv: Output results of DiD analysis RQ2_2_CoC_attributes.ipynb: Notebook for analysis to investigate the relationship between CoC Update characteristics and community engagement RQ2_2_CoC_attributes_data.csv: Input data for CoC Update analysis RQ2_2_CoC_attributes_results.csv: Output results of CoC Update analysis