mirror of https://github.com/Qiskit/qiskit.git
13 lines
610 B
YAML
13 lines
610 B
YAML
---
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upgrade_transpiler:
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- |
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The implicit use of ``approximation_degree!=1.0`` by default in the
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:func:`~.generate_preset_pass_manager` function has been
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disabled. The previous default could cause undue and unexpected approximations, especially in
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workloads involving Trotterization or similar runs of operations that are close, but decidedly
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not equal, to the identity.
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This change brings the inner pass-manager generation defaults in line with :func:`.transpile`,
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which was always the intention. See `#8595 <https://github.com/Qiskit/qiskit/pull/8595>`__ for
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more detail.
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