Currently, we have commits in our last CRAN version which are not part of current master, e.g. [9de2567](https://github.com/Rdatatable/data.table/commit/9de25675aa9f6efe982f4faff0ceb6ca55563563)
Currently, we have commits in our last CRAN version which are not part of current master, e.g. 9de2567