Enhancements

• Revamped Data Viewer: The data viewer is now faster and supports pinnable columns, a Summary sidebar with type-aware stats and sparkline histograms, keyboard navigation, and clipboard copy.
• Faster new sessions: RStudio Desktop's Session > New Session now opens noticeably faster.
• Shiny test integration: The Shiny test commands (Record Test, Run Tests, Compare Results) now use the shinytest2 package; shinytest has been deprecated.
• Hierarchical section folding: Section headers now fold hierarchically based on heading level, matching Positron's default behavior.
• Faster install.packages() hook: Reduced filesystem work performed by the install.packages() hook; the before/after scan is now scoped to the requested packages and their dependency closure rather than the entire library.

Bug Fixes

• The spell-check context menu now shows the full set of correction suggestions; previously a stray loop increment caused every other suggestion to be skipped, capping the menu at 3 items instead of 5.
• Pressing Escape to dismiss a ghost-text Next Edit Suggestion now also clears the NES gutter icon; previously the gutter icon remained visible after dismissal.
• Fixed two debugger regressions: top-level breakpoints (e.g. via debugSource()) no longer fail to show the debug highlight or call stack, and multi-line input at the Browse[N]> prompt no longer clears the captured browser context.
• The Files pane delete confirmation now reflects whether the file will be moved to the system Trash/Recycle Bin or permanently deleted, based on the "Delete files to Trash/Recycle Bin" preference.
• The Windows installer's File Version now matches its Product Version; previously the installer concatenated the major and minor version components into a single value that exceeded NSIS's 16-bit-per-component limit and was truncated to an unrelated number.

For a full list of bug fixes and enhancements in this release, see the release notes.