Homebrew 0.10.0 Go 1.25 build disables typed indexing for Go 1.26 modules #282

Reproduction

On macOS arm64 with the Homebrew spectackle 0.10.0 binary, run:

spectackle reindex -root PATH_TO_A_GO_1_26_MODULE

The target module declares Go 1.26 and builds/tests with the installed Go 1.26 toolchain.

Observed

Reindex reports that the application was built with Go 1.25, emits hundreds of package loading errors such as package requires newer Go version go1.26, and disables the typed-call pass for all affected packages. It falls back to the syntactic graph, so symbol discovery remains available but typed cross-package call edges are absent.

Expected

The published Homebrew binary should be built with a Go toolchain new enough to load modules supported by the current Go release used by target repositories, or should fail with one concise actionable compatibility diagnostic before attempting every package.

Isolated cause

Go packages loaded through go/packages inherit the Go version ceiling of the toolchain used to build or execute the application. The 0.10.0 Homebrew artifact identifies its ceiling as Go 1.25, while the indexed module requires Go 1.26. Rebuilding the release artifact with Go 1.26 should restore typed indexing; retaining an explicit startup version check would make future mismatches cheaper to diagnose.