Firefox (64-bit)

What's new in this version:

- Dramatically improved accessibility support, including support for screen readers, keyboard navigation improvements, focus indicators and contrast improvements, and more
- Real-time spellchecking with customizable dictionaries and inline correction suggestions
- Dozens of other productivity improvements, including auto-save, global search and replace, and Shiny background jobs
- All preferences and settings are now saved centrally in plain text files, and can be set by admins and backed up by users
- Compatibility with iPad OS 13 for RStudio Server
- RStudio Desktop Pro can now function as a client for RStudio Server Pro; access your server’s compute power and environments with the convenience of a windowed desktop application

Accessibility:
Dramatically improved accessibility for sight-impaired users, including:
- Keyboard focus management and visibility upgrades
- Improved keyboard navigation
- Compatibility with popular screen readers
- Compliant contrast ratios and other accessibility improvements
- User preference for disabling user-interface animations such as when zooming panes

Spell Check:
- Real-time spell-checking engine for checking while editing
- Customizable dictionaries and word ignore lists preloaded with common R terms
- Inline correction suggestions

Preferences and Configuration:
- All user preferences and settings can now be set using a plain JSON file
- All user preferences can now have global defaults set by a system administrator
- New diagnostics commands for editing the prefs file, resetting state, and viewing pref system data
- Editor themes, snippets, file templates, and keybindings are now portable and can be installed by admins
- The content of new file templates (New R Script, New R Markdown, etc.) can now be controlled by users or administrators
- renv
- New projects can be initialized with renv, giving them an isolated project environment

Server Security:
- New auth-timeout-minutes option signs users out after a defined period of inactivity
- CSRF hardening improvements including optional validation of the HTTP Origin header
- Add option auth-cookies-force-secure to always mark auth cookies as secure when SSL is terminated upstream
- Set HTTP header X-Content-Type-Options to discourage MIME type sniffing
- Authentication cookies are now revoked after signout
- File-serving resource endpoints can now be made more restrictive; added new restrict-directory-view and directory-view-whitelist options
- RStudio Server now uses 2048 bit RSA keys, for secure communication of encrypted credentials between server / session and client

Terminal Improvements:
- User preference to configure initial working directory of new terminals
- Command to open a new terminal at location of current editor file
- Command to insert the full path and filename of current editor file into terminal
- Command in File pane to open a new terminal at File pane’s current location
- Command in to change terminal to current RStudio working directory
- PowerShell Core option in terminal (Windows-only)
- Custom terminal shell option for Windows desktop (previously only on Mac, Linux, and server)
- Change shortcuts for Next/Previous terminal to avoid clash with common Windows shortcuts
- Suppress macOS Catalina message about switching to zsh in Terminal pane
- Add ‘Close All Terminals’ command to Terminal menu
- Zsh option in terminal for Mac and Linux desktop, and RStudio Server
- Diagnostics and Recovery:
- Add automated crash handling and reporting
- Show detailed logs and process output when R fails to start
- Add “Safe Mode” for opening sessions without profile scripts or workspace restoration

Tutorials:
- Support for tutorials with the learnr package in a new Tutorials pane

Background Jobs:
- Add support for running Shiny applications as background jobs
- Install missing package dependencies in a background job

Auto Save:
- Changes automatically (and optionally) saved to disk after a few seconds or when editor loses focus
- Option to disable real-time backup of unsaved changes to avoid conflicts with Google Drive, Dropbox, etc
- Option to adjust idle interval for backup or saving changes

Miscellaneous:
- Add global replace with live preview and regular expression support
- Enable large file uploads (over 4GB) in RStudio Server
- Improved ‘Comment / Uncomment’ handling of empty lines around selection
- Files with extension ‘.q’ are no longer indexed or parsed as R files
- Add support for an API command to return the list of R packages RStudio depends on
- Upgrade internal JSON parsing engine for speed improvements
- Improved ergonomics for history prefix navigation
- Make columns resizable in the Environment pane
- Add Word Count command
- Keyboard shortcuts for main menu items on RStudio Server (e.g. Ctrl+Alt+F for File menu)
- Show number of characters when entering version control commit messages
- Update embedded Qt to 5.12.5 for Chromium update, stability and bugfixes
- Add preference for changing font size on help pane
- Warn when Xcode license has not been agreed to on macOS when command line tools required
- Improved browser tab names (project name first, complete product name) (Pr
- The diagnostics system now understands referenced symbols in glue strings
- Add preference for compiling .tex files with tinytex
- Long menus and popups now scroll instead of overflowing (#1760, #1794
- Sort package-installed R Markdown templates alphabetically
- The ‘Reopen with Encoding’ command now saves unsaved changes before re-opening the document.
- Autocomplete support for Plumber #* comment keywords
- Automatically continue Plumber #* on successive lines
- Comment / uncomment is now enabled for YAML documents
- Reflow comment has been rebound to ‘Ctrl + Shift + /’ on macOS.
- Allow fuzzy matches in help topic search
- The diagnostics system better handles missing expressions
- Keyboard shortcuts for debugging commands can be customized
- Update Pandoc to 2.7.3
- Update SumatraPDF to version 3.1.2
- Allow previewing PDFs in fullscreen mode in Sumatra PDF
- RStudio Server runtime files are stored in /var/run, or another configurable location, instead of /tmp
- Errors encountered when attempting to find Rtools installations are handled more gracefully
- Enable copying images to the clipboard from the Plots pane
- Update minimum supported browser versions
- Automatic refresh of the Git pane can now be enabled / disabled as required.
- Target directory can be changed from within the ‘Upload Files’ dialog (RStudio
- Zoom Left/Right Column commands for keyboard users
- Increase maximum plot size for large, high-DPI displays
- Make maximum lines in R console configurable; was previously fixed at 1000
- Option to only show project name instead of full path in desktop window title
- New rstudio --version command to return the version of RStudio Desktop
- Scan R Markdown YAML header for R packages required to render document
- Support use of F13 - F24 for custom keyboard shortcuts (full Mac keyboard has F13-F19, for example)
- Keyboard shortcuts for searching R help in Help pane, and next/previous help page
- Keep keyboard focus in the console during debugging
- Enable wrap-around for previous/next source tab by default
- Provide full SHA in detail of Git commits
- File monitor now ignores Packrat, renv library folders
- Make global source control commands rebindable

Bugfixes:
- Fix issue where calling install.packages() without arguments would fail
- Fix issue where C code in packages would incorrectly be diagnosed as C++
- Fix plot history when plot() called immediately after dev.off()
- Fix debug stopping past breakpoint when source windows are open
- Fix diagnostics error with multibyte characters in R Markdown documents on Windows
- Fix stale processes when invoking child R processes with large command lines
- Fix an issue where help tooltips could become corrupt when using prettycode
- Fix an issue where signature tooltips were shown even when disabled by user preference
- Fix an issue where Git did not work within projects whose paths contained multibyte characters
- Fix an issue where RStudio would fail to preview self-contained bookdown books
- Fix modal dialog boundaries extending out of the app window in certain cases
- Fix issue where session restore could fail when using multiple user l
- Fix issue where library paths were not forwarded when building package docum
- Restore ability to select and copy text in version control diffs
- Fix incorrect column names when non-dataframes with a column named x were viewed
- Fix inconsistent shading in R Markdown chunk backgrounds with folding
- Fix list column display in columns past 50 with data viewer
- Fix incorrect column type display when paging columns
- Fix incorrect sorting in data viewer when paging columns
- Fix carryover of light ANSI background colors
- Fix issue where Shiny applications using reticulate on Windows could crash on run
- Fix issue where pasting text into last chunk in document could occasionally cause hang
- Fix blank Viewer Pane when displaying most HTML widgets with R 4.0.0