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Update version information for Tahoe - #27
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Note: No new toolchain modifications were done. This is only an extension of the current toolchain onto a new OS.
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Sep 16, 2026
* Support macOS 27 (Golden Gate) macrtools was hard-broken on macOS 27. is_macos_r_supported() compared against an exclusive upper bound of "27.0", so sw_vers reporting "27.0" returned FALSE and aborted macos_rtools_install(), gfortran_install() and openmp_install(). This is the third occurrence of the same off-by-one: #27 shipped it for Tahoe, #28 fixed it, and the fixed value then went stale one release later. Centralize the window behind minimum_supported_macos_version() and first_unsupported_macos_version(), naming the ceiling for the first version it rejects rather than the newest it accepts, and render the advertised range from that bound via macos_support_range() so the abort and startup messages cannot drift from the check they describe. Add is_macos_golden_gate() for 27.x. Also fix version comparison for .0 releases. sw_vers emits only two components for a .0 release, and compareVersion() ranks a shorter string below an otherwise-equal longer one, so every .0 release landed in the previous release's range: "12.0" read as Big Sur, "11.0" matched no predicate at all, and "10.13" was rejected by an error message that named 10.13 as supported. pad_version() now normalizes both the version and the bounds before comparison. The suite previously passed 136/136 on a macOS 27 machine the package refused to run on, because the upper bound had never been tested. Add boundary, contiguity and .0-form coverage, verified by mutation. * Bump GitHub Actions to latest versions
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Note: No new toolchain modifications were done. This is only an extension of the current toolchain onto a new OS.
Close #26