qiskit/releasenotes/notes/0.12/level1_trivial_dense_layout...

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---
features:
- |
In the preset pass manager for optimization level 1,
:func:`qiskit.transpiler.preset_passmanagers.level_1_pass_manager` if
:class:`qiskit.transpiler.passes.TrivialLayout` layout pass is not a
perfect match for a particular circuit, then
:class:`qiskit.transpiler.passes.DenseLayout` layout pass is used
instead.