Updates can be seen from here, https://cran.r-project.org/web/packages/gap/ChangeLog
This is an accumulated update to the same day a year ago.
Once again great thanks to the R Core, esp. Profs Uwe Ligges and Brian Ripley.
See https://cran.r-project.org/package=gap. It is amazing that for the first time, both the source/code and generated document are available.