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compose fails when front=True is provided and when the circuit to be composed has a different number of qubits

bugSomething isn't workingSomething isn't working

Status: Closed (completed).

#15834 In Qiskit/qiskit;

· by tnemoz was closed on Mar 26, 2026

QPY dumper in 2.4 does not handle conditions with registers

bugSomething isn't workingSomething isn't working

Status: Closed (completed).

Bug

#15856 In Qiskit/qiskit;

· by 1ucian0 was closed on Mar 27, 2026

QPY Rust and Python compatibility fixes

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

stable backport potentialMake Mergify open a backport PR to the most recent stable branch on merge.Make Mergify open a backport PR to the most recent stable branch on merge.

Status: Merged (completed).

Qiskit/qiskitnumber 15847

#15847 In Qiskit/qiskit;

· by gadial was closed on Mar 27, 2026

Fix: BasisTranslator processing of nested ControlFlowOp

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

mod: transpilerIssues and PRs related to TranspilerIssues and PRs related to Transpiler

RustThis PR or issue is related to Rust code in the repositoryThis PR or issue is related to Rust code in the repository

stable backport potentialMake Mergify open a backport PR to the most recent stable branch on merge.Make Mergify open a backport PR to the most recent stable branch on merge.

Status: Merged (completed).

Qiskit/qiskitnumber 15875

#15875 In Qiskit/qiskit;

· by raynelfss was closed on Mar 26, 2026

Fix: BasisTranslator processing of nested ControlFlowOp (backport #15875)

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

mod: transpilerIssues and PRs related to TranspilerIssues and PRs related to Transpiler

RustThis PR or issue is related to Rust code in the repositoryThis PR or issue is related to Rust code in the repository

Status: Merged (completed).

Qiskit/qiskitnumber 15884

#15884 In Qiskit/qiskit;

· by mergify was closed on Mar 26, 2026

Fix QuantumCircuit.compose for front=True and individual qargs

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

stable backport potentialMake Mergify open a backport PR to the most recent stable branch on merge.Make Mergify open a backport PR to the most recent stable branch on merge.

Status: Merged (completed).

Qiskit/qiskitnumber 15872

#15872 In Qiskit/qiskit;

· by jeevan0920 was closed on Mar 26, 2026

Fix QuantumCircuit.compose for front=True and individual qargs (backport #15872)

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

Status: Merged (completed).

Qiskit/qiskitnumber 15885

#15885 In Qiskit/qiskit;

· by mergify was closed on Mar 26, 2026

QPY Rust and Python compatibility fixes (backport #15847)

Changelog: FixedAdd a "Fixed" entry in the GitHub Release changelog.Add a "Fixed" entry in the GitHub Release changelog.

Status: Merged (completed).

Qiskit/qiskitnumber 15887

#15887 In Qiskit/qiskit;

· by mergify was closed on Mar 27, 2026