Multiple Console Sessions in Positron

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" summary

Feature launches GA July after an initial March 2025 release and adds true concurrent REPLs inside Positron: create sessions with the create button or duplicate the highlighted one, pick a runtime from the dropdown, and see per-session idle/busy icons. Sessions keep separate logs, variables, history, and errors; the active session powers editor completions, diagnostics, plots and variables; run different runtimes side‑by‑side (for example R 4.3 and R 4.6) or mix languages (Polyglot IDE).

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