- You can now toggle between R and Python in the Console by clicking the language’s logo in the Console pane header. (#11613)
- Allow customization of the project scratch path location. (#14875)
- Restart commands are now run after restoring the search path + global environment by default. (#14636)
- The “Save as Image” dialog now includes a “Use device pixel ratio” check box, controlling whether plots are scaled according to the current display’s DPI. (#14727)
- The “Soft-wrap R source files” preference now applies to all source files, and has been relabelled appropriately. (#10940)
- RStudio now supports Electron flags set via ~/.config/rstudio/electron-flags.conf or ~/.config/electron-flags.conf on Linux / macOS. On Windows, the paths are %LocalAppData%\RStudio\electron-flags.conf and %LocalAppData%\electron-flags.conf. (#14641)
- RStudio now uses a glimpse-like display for data.frame list-column entries. (#14257)
Full list of changes available here