To cite package ‘rversions’ in publications use:

  Csárdi G (2024). _rversions: Query 'R' Versions, Including
  'r-release' and 'r-oldrel'_. R package version 2.1.2.9000, ,
  <https://github.com/r-hub/rversions>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rversions: Query 'R' Versions, Including 'r-release' and 'r-oldrel'},
    author = {Gábor Csárdi},
    year = {2024},
    note = {R package version 2.1.2.9000, 
},
    url = {https://github.com/r-hub/rversions},
  }