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Noise simulation fails with Invalid noise_params JSON: not an object when built against nlohmann_json >= 3.11

bugSomething isn't workingSomething isn't working

Status: Open.

#2421 In Qiskit/qiskit-aer;

· dmeliksetian opened on Apr 26, 2026

Missing wheel for Linux aarch64 with Python 3.14

Status: Open.

#2419 In Qiskit/qiskit-aer;

· robertodr opened on Mar 29, 2026

Build fails on NVIDIA Blackwell (sm_120, CC 12.0) with CUDA 13.2 — patches required

Status: Open.

#2415 In Qiskit/qiskit-aer;

· dmeliksetian opened on Mar 24, 2026

CPU affinity issues

bugSomething isn't workingSomething isn't working

Status: Open.

#2414 In Qiskit/qiskit-aer;

· hettahetta opened on Mar 18, 2026

Unknown instruction: x

bugSomething isn't workingSomething isn't working

Status: Open.

#2411 In Qiskit/qiskit-aer;

· yoann-marquer opened on Feb 24, 2026

save_amplitudes fails for method="matrix_product_state" when qubit count exceeds 64 (wrong value or TypeError)

bugSomething isn't workingSomething isn't working

Status: Open.

#2410 In Qiskit/qiskit-aer;

· tavis-bennett opened on Feb 17, 2026

Build fails for CUDA 12.9

bugSomething isn't workingSomething isn't working

Status: Open.

#2405 In Qiskit/qiskit-aer;

· wshanks opened on Jan 30, 2026

Qiskit-are raises AerError: unknown instruction ch, only when using specific circuit structure

bugSomething isn't workingSomething isn't working

Status: Open.

#2404 In Qiskit/qiskit-aer;

· Bennybenassius opened on Jan 27, 2026

[BUG] Wrong PUB Parameter Bind for Controlled Phase Gate in Primitives

bugSomething isn't workingSomething isn't working

Status: Open.

#2403 In Qiskit/qiskit-aer;

· dbucher97 opened on Jan 26, 2026

Feature Request: CPU+GPU Job-Level Load Balancing

enhancementNew feature or requestNew feature or request

Status: Open.

#2402 In Qiskit/qiskit-aer;

· wojciechp6 opened on Jan 26, 2026

ROCm builds are broken

Status: Open.

#2401 In Qiskit/qiskit-aer;

· valentinpi opened on Jan 25, 2026

Runtime panic when running on AerSimulator

bugSomething isn't workingSomething isn't working

Status: Open.

#2400 In Qiskit/qiskit-aer;

· IlanIwumbwe opened on Jan 25, 2026