Issues

• [BUG]Runtime Crash in cancel_inverses with General Unitary Matrices

  bug 🐛
  PennyLaneAI/pennylane#10201 · Filter by author mushahidkhan835 opened on Sep 25, 2026
  1

• [BUG] : Rotation fusion can produce NaN due to floating-point rounding

  bug 🐛
  PennyLaneAI/pennylane#10197 · Filter by author SteveSonyJacob opened on Sep 25, 2026
  1

• [BUG] single_qubit_fusion produces a Rot with a NaN Euler angle (e.g. on H; H), yielding a NaN unitary

  bug 🐛
  PennyLaneAI/pennylane#10185 · Filter by author DongjaeLee-Dd2dD2 opened on Sep 23, 2026
  3

• [BUG] from_zx reverses CNOT control and target depending on vertex creation order

  bug 🐛
  PennyLaneAI/pennylane#10174 · Filter by author WindOctober opened on Sep 20, 2026
  1

• [BUG] is_commuting incorrectly reports CSWAP gates as commuting, causing incorrect gate cancellation

  bug 🐛
  PennyLaneAI/pennylane#10173 · Filter by author WindOctober opened on Sep 20, 2026
  1

• [BUG] single_qubit_fusion adds a global phase when no gates are fused

  bug 🐛
  PennyLaneAI/pennylane#10172 · Filter by author WindOctober opened on Sep 20, 2026
  1

• Native qang unit/gate: qg_Z-parameterized rotation + calibration utilities

  enhancement ✨
  PennyLaneAI/pennylane#10171 · Filter by author Viny2030 opened on Sep 19, 2026
  4

• default.tensor silently returns a wrong-shaped result for a batched QNode call (no error, no warning)

  PennyLaneAI/pennylane#10170 · Filter by author Shushant17711 opened on Sep 19, 2026
  1

• default.tensor (method="mps") ignores the device's wires= ordering — physical MPS chain order is fixed by numeric label order regardless

  PennyLaneAI/pennylane#10169 · Filter by author Shushant17711 opened on Sep 19, 2026
  1

• Pause capture around decomposition resource functions

  PennyLaneAI/pennylane#10162 · Filter by author Qottmann opened on Sep 18, 2026
  8

• Potential missed optimization in qml.compile: pre-decomposition prevents inverse cancellation

  enhancement ✨
  PennyLaneAI/pennylane#10157 · Filter by author jangyoujin0917 opened on Sep 17, 2026
  1

• Support complex-polynomial matrix QSVT using U(2)-QSVT

  enhancement ✨
  PennyLaneAI/pennylane#10092 · Filter by author jk20342 opened on Aug 30, 2026
  1

• Generic controlled-decomposition wrapping always counts a spurious PauliX per control wire

  PennyLaneAI/pennylane#10080 · Filter by author Qottmann opened on Aug 27, 2026
  1

• [BUG] MultiplexerStatePreparation does not work with torch

  bug 🐛wontfix 🙈
  PennyLaneAI/pennylane#10075 · Filter by author dwierichs opened on Aug 26, 2026
  3

• Add reusable unitary-equivalence testing utility for operators and circuits

  enhancement ✨
  PennyLaneAI/pennylane#10063 · Filter by author sarehaskari17 opened on Aug 24, 2026
  1

• Minor doc issue? DoubleExcitation qubit indices in AllSinglesDoubles example may contain a typo

  PennyLaneAI/pennylane#10034 · Filter by author wan-nie opened on Aug 20, 2026
  5

• TCDQ Qudit MMD silently ignores configured phase layers

  bug 🐛
  PennyLaneAI/pennylane#10031 · Filter by author josephbowles opened on Aug 19, 2026

• abstractify supports operator types with partially fixed signatures by allowing keyword arguments.

  enhancement ✨
  PennyLaneAI/pennylane#10001 · Filter by author astralcai opened on Aug 11, 2026

• Add a “Copy as Markdown” button to PennyLane documentation pages

  enhancement ✨
  PennyLaneAI/pennylane#9946 · Filter by author onovo1 opened on Aug 2, 2026
  3

• Automatic differentiation with default.tensor, jax and quimb

  enhancement ✨
  PennyLaneAI/pennylane#9914 · Filter by author RisingPhoelix opened on Jul 28, 2026
  1

• [BUG] Adjoint silently returns incomplete higher-order Torch derivatives after classical preprocessing

  bug 🐛
  PennyLaneAI/pennylane#9901 · Filter by author bernalde opened on Jul 23, 2026
  5

• Add an example to the to_openqasm docs to show how to use the wires kwarg to avoid qubit reordering

  PennyLaneAI/pennylane#9768 · Filter by author gsbgithub opened on Jul 4, 2026
  4

• Allow qp.data.load to work fully offline

  enhancement ✨
  PennyLaneAI/pennylane#9699 · Filter by author martinellop opened on Jun 18, 2026
  6

• [BUG] default.clifford ignores shot-vector partitions and returns malformed QNode results

  bug 🐛community-bot
  PennyLaneAI/pennylane#9671 · Filter by author Timeless-hep opened on Jun 15, 2026
  7

• [BUG] default.clifford(tableau=False) returns a probability vector for qml.expval(qml.Projector(...))

  bug 🐛community-bot
  PennyLaneAI/pennylane#9670 · Filter by author Timeless-hep opened on Jun 15, 2026
  3