Issues

• NoiseConfig not applied

  bugneeds triage
  microsoft/qdk#4275 · Filter by author amcasey opened on Nov 13, 2026

• QIR compilation scales quadratically due to linear visited-block searches in remap_block_ids (Adaptive profile)

  bugneeds triage
  microsoft/qdk#4264 · Filter by author fedimser opened on Nov 11, 2026

• QIR compilation scales quadratically with a chain of measurement-dependent branches

  bugneeds triage
  microsoft/qdk#4263 · Filter by author fedimser opened on Nov 11, 2026

• [Panic] run_qir(shots=0, type="gpu") panics with 'attempt to divide by zero'

  buglow-priority
  microsoft/qdk#4261 · Filter by author amcasey opened on Nov 11, 2026
  1

• GPU: the PROPAGATE loss policy fails when the surviving qubit is in superposition

  bugneeds triage
  microsoft/qdk#4257 · Filter by author amcasey opened on Nov 11, 2026
  1

• GPU: move corrupts Adaptive programs, so NeutralAtomDevice.simulate fails by default

  bug
  microsoft/qdk#4256 · Filter by author amcasey opened on Nov 11, 2026

• GPU: any mz/mresetz noise makes every Adaptive run fail

  bug
  microsoft/qdk#4255 · Filter by author amcasey opened on Nov 11, 2026

• Base: GPU applies mz/mresetz/reset noise before the operation, CPU after

  bugneeds triage
  microsoft/qdk#4254 · Filter by author amcasey opened on Nov 11, 2026
  2

• [Bug] Integer division by a run-time zero: GPU silently returns the dividend, CPU panics

  bug
  microsoft/qdk#4253 · Filter by author amcasey opened on Nov 11, 2026

• GPU: a correlated-noise fault flips a lost qubit, which then reloads as |1>

  bug
  microsoft/qdk#4251 · Filter by author amcasey opened on Nov 11, 2026

• GPU: Reset does not reload a lost qubit

  bug
  microsoft/qdk#4250 · Filter by author amcasey opened on Nov 11, 2026

• [Bug] DEGRADE: CPU and GPU attach different noise tables to a degraded Rxx/Ryy/Rzz

  bug
  microsoft/qdk#4248 · Filter by author amcasey opened on Nov 11, 2026

• GPU: DEGRADE loss policy uses angle ≈0 for run-time Rxx/Ryy/Rzz angles

  bug
  microsoft/qdk#4247 · Filter by author amcasey opened on Nov 11, 2026

• GPU: a Pauli fault on a rotation with a run-time angle drops the rotation

  bug
  microsoft/qdk#4246 · Filter by author amcasey opened on Nov 11, 2026

• GPU: Adaptive shots with ~100,000+ quantum ops silently return unfinished results

  bug
  microsoft/qdk#4245 · Filter by author amcasey opened on Nov 11, 2026

• [Stim] Noise is correlated

  bug
  microsoft/qdk#4244 · Filter by author amcasey opened on Nov 11, 2026
  2

• [Performance] Chemistry phase estimation with one controlled unitary compiles several times slower

  bugneeds triage
  microsoft/qdk#4227 · Filter by author amcasey opened on Nov 9, 2026

• Python callable inputs skip functor validation (undo workaround for chemistry)

  bugneeds triage
  microsoft/qdk#4222 · Filter by author swernli opened on Nov 9, 2026

• [Bug] on_loss validation error shows '{}' instead of the gate name

  buglow-priority
  microsoft/qdk#4187 · Filter by author amcasey opened on Nov 5, 2026
  1

• [Bug] Setting a noise probability to 0 makes NoiseTable.is_noiseless() return False

  bug
  microsoft/qdk#4184 · Filter by author amcasey opened on Nov 5, 2026
  

• [Bug] Qiskit skip_transpilation=True fails for gates with scaled parameters (CU1)

  buglow-priority
  microsoft/qdk#4182 · Filter by author amcasey opened on Nov 5, 2026

• [Bug] Qiskit QSharpBackend fails for circuits named after a Q# keyword

  buglow-priority
  microsoft/qdk#4180 · Filter by author amcasey opened on Nov 5, 2026

• [Bug] OpenQASM: assigning through a negative index (c[-1] = …) fails

  buglow-priority
  microsoft/qdk#4179 · Filter by author amcasey opened on Nov 5, 2026
  1

• [Bug] OpenQASM: ctrl @ pow(k) @ x is rejected with MissingFunctor

  bugbulk-filedneeds triage
  microsoft/qdk#4178 · Filter by author amcasey opened on Nov 5, 2026

• [Bug] Interpreter stabilizer: CheckZero and DumpMachine fail with 'not implemented'

  bugbulk-filedneeds triage
  microsoft/qdk#4177 · Filter by author amcasey opened on Nov 5, 2026