Release for PR 6123
fix: add support for `zetaDelta` to `simp?` We must track the `zetaDelta` expansions performed; otherwise, the generated `simp` tactic will be incorrect. See the new test.
fix: add support for `zetaDelta` to `simp?` We must track the `zetaDelta` expansions performed; otherwise, the generated `simp` tactic will be incorrect. See the new test.