0.4.0 - 2026-06-09

• Add an opam-doctor executable so opam can dispatch the tool as opam doctor.
• Mark the package with the opam plugin flag.
• Warn about broken Windows opam doctor plugin dispatch entries.
• Warn when Windows user symlink support appears disabled for opam plugin entries.
• Warn when opam Windows runtime directories appear missing from PATH for plugin dispatch.
• Warn when PATH includes the current directory.
• Warn when forced color-output variables or GREP_OPTIONS may affect builds.
• Keep the existing doctor command and diagnostic behavior unchanged.

0.3.0 - 2026-05-27

• Improve opam switch environment diagnostics when switch tools are installed but missing from PATH.
• Add shell-specific opam environment guidance and regression tests for stale or malformed opam command output.
• Document the read-only diagnostic contract and stable JSON diagnostic names.
• Add golden text report fixtures for the diagnostic renderer.

0.2.0 - 2026-05-21

• Add doctor check --json for machine-readable diagnostics.
• Tighten opam environment diagnostic tests and small parser helpers.
• Fix the README license badge URL.

0.1.0 - 2026-05-06

• Initial opam release.
• Add doctor check with diagnostics for common OCaml, opam, dune, LSP, formatter, PATH, and editor setup issues.
• Document the text report and exit codes.