44 Pull requests merged by 22 people

• Global phase improvements to RS decomposition

  #7793 merged Jul 11, 2025

• Seed test_split_to_single_terms

  #7851 merged Jul 11, 2025

• [Python Compiler] Fix attributes and type annotations

  #7825 merged Jul 11, 2025

• Daily rc sync to master

  #7848 merged Jul 11, 2025

• get rid of duplicate entry in changelog

  #7850 merged Jul 11, 2025

• [FTQC] combine_global_phases

  #7675 merged Jul 11, 2025

• v0.42.0 changelog

  #7800 merged Jul 11, 2025

• Update README image paths for PyPI compatibility

  #7839 merged Jul 11, 2025

• Mudit's QA fixes for 0.42 release

  #7806 merged Jul 10, 2025

• Jax jit givens decomposition

  #7823 merged Jul 10, 2025

• [Python Compiler] Add measurements-from-samples pass to Python compiler

  #7620 merged Jul 10, 2025

• Minor SelectPauliRot and TemporaryAND fixes

  #7843 merged Jul 10, 2025

• [Python compiler] Add MBQC dialect

  #7815 merged Jul 10, 2025

• Updates to various docs

  #7811 merged Jul 10, 2025

• Fix queuing with mappable operations within partial_wires

  #7830 merged Jul 10, 2025

• Explicitly list out kwargs in assert_valid

  #7844 merged Jul 10, 2025

• Remove module-level catalyst import from QNGOptimizerQJIT

  #7845 merged Jul 10, 2025

• Daily rc sync to master

  #7840 merged Jul 10, 2025

• Update code examples in the changelog to use the new qml.set_shots

  #7841 merged Jul 10, 2025

• Documentation for qubit allocation

  #7726 merged Jul 10, 2025

• Remove print in Select

  #7842 merged Jul 10, 2025

• Documentation updates for QA from Astral

  #7816 merged Jul 10, 2025

• Add ResourceOperator support for various Matrix Ops with optimal resources

  #7786 merged Jul 10, 2025

• Make ToBloq not top level

  #7814 merged Jul 10, 2025

• Yushao's 0.42 QA docs fix

  #7804 merged Jul 10, 2025

• Simone's doc QA fixes for v0.42 release

  #7833 merged Jul 10, 2025

• Move changelog entry for two_qubit_decomposition to "Improvements" section

  #7837 merged Jul 10, 2025

• v0.42.0 changelog improvements onward

  #7828 merged Jul 10, 2025

• Fix validate_norm overriding normalize in StatePrep

  #7835 merged Jul 10, 2025

• v0.42.0 release notes - QSVT/QSP Angle Solver and OpenQasm

  #7812 merged Jul 9, 2025

• 0.42 Release Notes: Qualtran + Clifford-T Decomposition

  #7829 merged Jul 9, 2025

• Daily rc sync to master

  #7824 merged Jul 9, 2025

• Daily rc sync to master

  #7819 merged Jul 9, 2025

• update math.diagonal call in structure_constants.py to work with latest autoray version

  #7826 merged Jul 9, 2025

• update math.diagonal call in structure_constants.py to work with latest autoray version

  #7827 merged Jul 9, 2025

• Update docs for resource tracking feature in null.qubit

  #7813 merged Jul 9, 2025

• Add capture marker and capture test runner

  #7799 merged Jul 8, 2025

• add python configuration step to rc_sync.yml

  #7818 merged Jul 8, 2025

• update pattern matching for rc branch in rc_sync.yml

  #7808 merged Jul 8, 2025

• Raise an understandable error in place of openqasm3's mysterious ones

  #7802 merged Jul 7, 2025

• [v0.42.0 release] bump dev version to v0.43.0

  #7798 merged Jul 7, 2025

• [v0.42.0 release] preparation for release candidate branches

  #7796 merged Jul 7, 2025

• Update stable dependency files

  #7795 merged Jul 7, 2025

• Implement group-by-sums optimization for perturbation_error function

  #7790 merged Jul 7, 2025

23 Pull requests opened by 13 people

• [Proposal] Easier extension of transforms to new objects

  #7797 opened Jul 7, 2025

• OutPoly qfunc decomposition

  #7822 opened Jul 8, 2025

• Multiplier qfunc decomp

  #7834 opened Jul 9, 2025

• ModExp qfunc decomp

  #7836 opened Jul 9, 2025

• Docs clean up for Resource Estimation in Labs

  #7846 opened Jul 10, 2025

• [circ. deps.] enforce `pulse` module as "auxiliary"

  #7847 opened Jul 10, 2025

• Convert vibronic Hamiltonian to PETSc matrix

  #7849 opened Jul 11, 2025

• :construction: Documentation for the Quantum Dialect in PennyLane

  #7852 opened Jul 11, 2025

• Update pytest version

  #7853 opened Jul 11, 2025

• chore: move noise related transforms to `noise` module

  #7854 opened Jul 11, 2025

• chore: deprecate `QNode.add_transform`

  #7855 opened Jul 11, 2025

• chore: organize all custom exceptions into `exceptions.py`

  #7856 opened Jul 11, 2025

• Added the resource templates for comparison circuits

  #7857 opened Jul 11, 2025

• Deprecate `shots` setting from devices

  #7858 opened Jul 11, 2025

• Use `TemporaryAND` for `MultiControlledX` decomposition with many clean aux wires

  #7859 opened Jul 11, 2025

• use `ruff` and `pyupgrade` to use `3.10`+ python language features

  #7860 opened Jul 11, 2025

• [Decomposition] Register work-wire usage of decomposition rules

  #7861 opened Jul 11, 2025

• Add ability to chain transforms on tapes and batches

  #7863 opened Jul 11, 2025

• [WIP] xDSL diagonalize_measurements

  #7864 opened Jul 12, 2025

• [circ. dep] enforce `templates.subroutines` module as "auxiliary"

  #7865 opened Jul 12, 2025

• [circ. dep] enforce `templates.state_preparations` module as "auxiliary"

  #7866 opened Jul 13, 2025

• Daily rc sync to master

  #7867 opened Jul 14, 2025

• Update stable dependency files

  #7868 opened Jul 14, 2025

3 Issues closed by 2 people

• [BUG] `transpile` throws `WireError: wire not found` when provided `coupling_map` contains physical qubits more than wires on the `qml.device`

  #7820 closed Jul 9, 2025

• [FEATURE] qml.probs() returns sample probabilities instead of exact probabilities when shots is finite

  #7264 closed Jul 7, 2025

• [BUG] qml.matrix does not work with torch GPU

  #7774 closed Jul 7, 2025

2 Issues opened by 2 people

• [BUG] Circuit drawing differs *very* slightly when `default.qubit` receives a `wires` value or not

  #7807 opened Jul 7, 2025

• [BUG] `cancel_inverses` and `merge_rotations` do not take abstract wires into account.

  #7803 opened Jul 7, 2025

25 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Optimize `BasisRotation` for real-valued inputs and extend theory in docstring

  #7765 commented on Jul 8, 2025 • 27 new comments

• make `ExecutionConfig` and `MCMConfig` frozen dataclasses

  #7697 commented on Jul 11, 2025 • 12 new comments

• chore: deprecate `qml.qnn.cost.SquaredErrorLoss` class

  #7527 commented on Jul 11, 2025 • 3 new comments

• Implement new `MomentumQNGOptimizer` compatible with (q)jit

  #7606 commented on Jul 11, 2025 • 2 new comments

• Update test durations

  #7794 commented on Jul 12, 2025 • 0 new comments

• Controlled sequence template qfunc decomposition

  #7787 commented on Jul 9, 2025 • 0 new comments

• Out Multiplier qfunc decomposition

  #7781 commented on Jul 9, 2025 • 0 new comments

• OutAdder template qfunc decomposition

  #7780 commented on Jul 9, 2025 • 0 new comments

• Adder template qfunc decomposition

  #7779 commented on Jul 11, 2025 • 0 new comments

• Fixing sidebar

  #7778 commented on Jul 11, 2025 • 0 new comments

• Add support for QASM 3.0 qubit registers

  #7767 commented on Jul 10, 2025 • 0 new comments

• Convert static circuit to dynamic circuit with mid-circuit measurements using GidNET

  #7756 commented on Jul 7, 2025 • 0 new comments

• Phase tricks that simplify decompositions

  #7754 commented on Jul 7, 2025 • 0 new comments

• Relative phase / state duality decompositions

  #7748 commented on Jul 7, 2025 • 0 new comments

• Add new transform for circuit simplification based on ZX-calculus

  #7747 commented on Jul 7, 2025 • 0 new comments

• Make templates `capture`-compatible

  #7696 commented on Jul 13, 2025 • 0 new comments

• Support remaining stdlib QASM 3.0 gates

  #7690 commented on Jul 10, 2025 • 0 new comments

• Built in functions are supported

  #7679 commented on Jul 10, 2025 • 0 new comments

• Interpret built-in constants in QASM 3.0

  #7677 commented on Jul 10, 2025 • 0 new comments

• Custom gates in QASM 3.0

  #7676 commented on Jul 10, 2025 • 0 new comments

• Return outputs from QASM 3.0 to python

  #7653 commented on Jul 10, 2025 • 0 new comments

• Inputs can be provided from python to QASM 3.0 programs

  #7651 commented on Jul 10, 2025 • 0 new comments

• Assert equal measurement observable

  #7421 commented on Jul 11, 2025 • 0 new comments

• [WIP] Make `qml.FlipSign` jittable

  #7127 commented on Jul 9, 2025 • 0 new comments

• Parameterized circuits with `qml.FlipSign` are not QJIT-compatible

  #7831 commented on Jul 9, 2025 • 0 new comments