Azure Databricks currently runs R version 3.4.4 (2018-03-15), which is unacceptable in my opinion since the latest R version on CRAN is 3.5.2 (2018-12-20).

My question is: Is it possible for me to upgrade and install R version 3.5.2 on Azure Databricks? Follow-up question, is there any information available regarding the release schedule for R on Databricks?