Issues

• OpRepEmbedded for statevec_slow: replace two pure-Python block loops with NumPy indexing

  bug
  sandialabs/pyGSTi#957 · Filter by author sserita opened on Oct 31, 2026

• EmbeddedOp: to_dense is wrong for a gate on labels of different dimension

  bug
  sandialabs/pyGSTi#956 · Filter by author sserita opened on Oct 31, 2026

• RootConjOperator uses inconsistent standard-basis ordering with tensor-product bases

  bugfixed but not in release yet
  sandialabs/pyGSTi#952 · Filter by author rileyjmurray opened on Oct 21, 2026
  3

• Fisher information routines renormalize clipped probabilities by their 2-norm

  0.11 blockerbug
  sandialabs/pyGSTi#947 · Filter by author rileyjmurray opened on Oct 18, 2026

• errorgen_penalty_factor in GST loss functions fails at when seeded at the origin

  sandialabs/pyGSTi#945 · Filter by author rileyjmurray opened on Oct 15, 2026
  2

• make_simultaneous_gst_design can add an empty color patch, which costs a full patch of circuits

  0.11 blocker
  sandialabs/pyGSTi#938 · Filter by author rileyjmurray opened on Oct 14, 2026

• Function to scale error generator rates to a target channel metric

  sandialabs/pyGSTi#929 · Filter by author rileyjmurray opened on Oct 7, 2026
  1

• C/A basis-element-label pair order: model objects vs. errorgenpropagation

  sandialabs/pyGSTi#925 · Filter by author rileyjmurray opened on Sep 24, 2026
  1

• Analytic Jacobian for MapForwardSimulator via a suffix/adjoint pass

  enhancement
  sandialabs/pyGSTi#918 · Filter by author sserita opened on Sep 11, 2026
  2

• Discussion: Deprecating TermForwardSimulator in 0.11?

  sandialabs/pyGSTi#916 · Filter by author coreyostrove opened on Sep 11, 2026
  2

• report.write_pdf() raises KeyError: 'plt_data' on any report with a heatmap

  Bug

  sandialabs/pyGSTi#898 · Filter by author rileyjmurray opened on Aug 24, 2026

• Is Circuit.default_expand_subcircuits = True a design ruling, or a 2019 compatibility default nobody has revisited?

  sandialabs/pyGSTi#892 · Filter by author rileyjmurray opened on Aug 19, 2026

• Circuit._fastinit keeps nested compound layers that __init__ flattens

  Bug

  sandialabs/pyGSTi#891 · Filter by author rileyjmurray opened on Aug 19, 2026

• Model construction incompatible with arity-only, and symplectic-rep-only gates

  Bug

  sandialabs/pyGSTi#890 · Filter by author coreyostrove opened on Aug 19, 2026

• DEMs from error generators

  Feature

  sandialabs/pyGSTi#886 · Filter by author rileyjmurray opened on Aug 17, 2026 · 0.11

• Metrics Naming could be confusing

  sandialabs/pyGSTi#879 · Filter by author nkoskelo opened on Aug 12, 2026
  2

• CI: avoid dependence on Scott Aaronson's C implementation of CHP sim in notebook tests

  sandialabs/pyGSTi#875 · Filter by author rileyjmurray opened on Aug 11, 2026 · 0.10.3
  1

• Add process-fidelity prediction to QPANN via Pauli expectation values

  enhancement
  Feature

  sandialabs/pyGSTi#869 · Filter by author nonohuff opened on Aug 6, 2026
  1

• Fix stochastic-2q-drops in mirror circuit construction

  Bug

  sandialabs/pyGSTi#844 · Filter by author sserita opened on Jul 15, 2026 · 0.10.3
  

• Generate/recover stochastic errors

  Bug

  sandialabs/pyGSTi#840 · Filter by author yoann-marquer opened on Jul 14, 2026
  2

• Add gauge optimization and error bars per-depth in long-sequence GST

  Feature

  sandialabs/pyGSTi#825 · Filter by author rileyjmurray opened on Jul 6, 2026

• Improve _add_param_preserving_gaugeopt's compatibility with full TP models

  sandialabs/pyGSTi#824 · Filter by author rileyjmurray opened on Jul 6, 2026 · 0.11

• promote_bb_to_bt: inherit the input model's parameterization where possible

  Feature

  sandialabs/pyGSTi#819 · Filter by author rileyjmurray opened on Jul 3, 2026

• promote_bb_to_bt: decide how the source model's idle gate is promoted

  Feature

  sandialabs/pyGSTi#818 · Filter by author rileyjmurray opened on Jul 2, 2026

• Lift instruments and factories in the leakage model-promotion functions

  Feature

  sandialabs/pyGSTi#817 · Filter by author rileyjmurray opened on Jul 2, 2026