Tk

A native Apple Silicon build of Tcl/Tk exists and has been confirmed in the wild. Since Tcl/Tk is a framework rather than a standalone application, you will not update it directly through a download page or app store. Instead, it is updated as part of the parent application or environment that uses it. If you installed Tcl/Tk standalone through MacPorts (a common distribution channel on macOS), run 'sudo port selfupdate' followed by 'sudo port upgrade outdated' to pull the native arm64 build. If Tcl/Tk came bundled with Python from python.org, re-download and reinstall the latest Python installer from python.org — current installers ship with a native Tcl/Tk 8.6 built-in. For R users, update R to the latest native build from r-project.org; recent R installers for Apple Silicon include a native Tcl/Tk 8.6.12. If you are using Tcl/Tk through another application (such as IDLE, a scientific package, or a custom tool), check that application's update mechanism — upgrading the parent app will bring in the native Tcl/Tk framework automatically. If you built Tcl/Tk from source, rebuild from the latest source at tcl.tk/download with a native arm64 build environment.