Hi,
opalr package (that does the R connection to Opal) version 1.5.0 is available from CRAN.
This release offers many system management functions for making the data harmonization in R easier (data upload, data dictionary update, taxonomies, projects, tables/views, resources and permissions management) and for DataSHIELD developers (R/DataSHIELD packages management). See release note of 1.5.0.
Regards
Yannick