qiskit/releasenotes/notes/0.21/consistent-validation-for-gaussian-square-pulse-461087a09ff339a4.yaml

---
fixes:
  - |
    Parameter validation for :class:`~.pulse.library.GaussianSquare` is now
    consistent before and after construction.
    Refer to `#7882 <https://github.com/Qiskit/qiskit-terra/issues/7882>`__ for more details.