qiskit/releasenotes/notes/0.15/0.15.0-release-c7d85921f85f...

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prelude: |
The 0.15.0 release includes several new features and bug fixes. Some
highlights for this release are:
This release includes the introduction of arbitrary
basis translation to the transpiler. This includes support for directly
targeting a broader range of device basis sets, e.g. backends
implementing RZ, RY, RZ, CZ or iSwap gates.
The :class:`~qiskit.circuit.QuantumCircuit` class now tracks global
phase. This means controlling a circuit which has global phase now
correctly adds a relative phase, and gate matrix definitions are now
exact rather than equal up to a global phase.