PennyLaneAI/pennylane-qiskit v0.43.0

Release 0.43.0

on GitHub

Improvements 🛠

• Add pre-commit hook and requirements-dev.txt file for installation of development dependencies.
  (#657)

Breaking changes 💔

• The minimum supported version of PennyLane is now v0.43.0.
  (#663)

• The supported Qiskit versions are now capped at 2.2.0, meaning versions above 2.2.0 are not compatible with this release.
  (#661)

• Remove support for Qiskit 1.0 and add support for Qiskit 2.0.
  (#653)
  (#659)

• Remove support for Python 3.10 and add support for Python 3.13.
  (#646)

• QiskitDevice no longer warns or changes shots=None at initialization.
  Instead, the analytic_warning transform issues a warning only at execution time,
  and leaves shots=None unchanged; the Qiskit backend will then set it's own default for the number of shots.
  To ensure a consistent experience, use qml.set_shots(shots) on each QNode executed
  with QiskitDevice:

  dev = qml.device("qiskit.aer", wires=2)
  
  @qml.set_shots(1000)
  @qml.qnode(dev)
  def circuit():
      qml.Hadamard(wires=0)
      qml.CNOT(wires=[0, 1])
      return qml.expval(qml.PauliZ(0))
  
  # or equivalently, without the decorator:
  #  circuit = qml.set_shots(circuit, shots=1000)
  result = circuit()

  (#650)
  (#654)

Internal changes ⚙️

• Updated tests to use qml.set_shots for setting shot values on circuits.
  (#644)

Documentation 📝

• Updated documentation for connecting to IBM backends.
  (#647)

• Fix minor typos in documentation and docstrings.
  (#648)

Contributors ✍️

This release contains contributions from (in alphabetical order):

Yushao Chen,
Inho Choi,
Austin Huang,
Andrija Paurevic.