RStudio for Mac

Fixed

• (#17990): The data viewer becoming unusable when a numeric column's histogram computation fails; such a failure now leaves that one column without a sparkline instead of aborting the whole data frame.
• (#17937): The Object Explorer showing the first element's contents for every same-named element when a list has duplicated names; such elements are now retrieved by index instead of by name.
• (#17944): The Source pane occasionally restoring the wrong active tab after a reload or session restart when tabs had been drag-reordered or documents opened mid-session; the active document is now remembered by ID rather than by tab position.
• (#17521): R Notebook previews failing with "object not found" when the document contains inline R code referencing objects in the global environment; inline chunks are now evaluated in the user's R session and their outputs passed to the background notebook render. This can be disabled with the new "Execute inline R code when previewing notebooks" preference (Global Options > R Markdown).
• (#17501): The secondary toolbars in the Find in Files and Presentation panes rendering 2px shorter than the space reserved for them, which left a small dead strip below the toolbar border.

Added

• (#17892): A "Use the system certificate store" option (Tools > Global Options > Assistant) so the GitHub Copilot agent and Posit Assistant trust the operating system certificate store (Windows Certificate Store, macOS Keychain) when connecting – useful behind a TLS-inspecting proxy on RStudio Desktop.

Full list of changes available here