Okay, I have R 4.1.0 which CRAN tells me is the most recent.
However I have RStudio 1.4.174 and when I go to Help -> Check for Updates, it tells me that ver 1.4.1717 seems to be available. Well it did but it seems to have stopped telling me that and now it is telling me that i have the most recent! It lies!
For the truly brave, or possibly foolhardy, there is RStudio v1.4.1725-2 Preview RStudio Preview - RStudio
In any case, despite what lies RStudio is telling you, you do not have the most recent version. I would suggest going to Download the RStudio IDE - RStudio and downloading 1.4.1717 and installing it.