Description. Depend on R >= 4.0 to integrate updates in rgdal, GDAL and PROJ.

dockerfiles/test_environment/Dockerfile_devel

@@ -34,6 +34,7 @@ RUN ["install2.r", "devtools", "knitr", "lintr", "mapview", "rmarkdown", "roxyge
 RUN rm -rf /tmp/downloaded_packages/ /tmp/*.rds
 
 # Copy mapMCDA source directory
+# Should perhaps clone the current version on line, as done in GitLab?
 COPY . $CI_PROJECT_DIR
 
 # Build package