generated: '2026-08-06'
method: searched
source: https://felis.alice-bob.com/docs/reference/changelog/
description: >-
  Alice & Bob publishes one changelog, and it covers the qiskit-alice-bob-provider client
  library rather than the Felis Cloud REST API. Entries are keyed by semver release with no
  dates on the page; release dates below are taken from the PyPI upload timestamps for the
  same versions. Breaking changes to the developer surface — including the migration of the
  default API host to api-gcp.alice-bob.com — have only ever been announced here.
docs: https://felis.alice-bob.com/docs/reference/changelog/
scope: qiskit-alice-bob-provider (client library)
api_changelog: null

versioning:
  scheme: semver
  artifact: qiskit-alice-bob-provider (PyPI)
  current_stable: 1.2.0
  current_prerelease: 1.3.0b4
  prerelease_date: '2025-09-30'
  detail: lifecycle/alice--bob-lifecycle.yml

entries:
  - version: 1.1.1
    breaking: []
    additions:
      - >-
        get_memory() support for the remote provider — passing memory=True to backend.run()
        stores each individual shot, retrievable via result.get_memory(). Brings the remote
        provider to parity with the local provider; enables using a Boson 4 chip as a random
        number generator.
  - version: 1.1.0
    breaking:
      - Dropped support for Python 3.8.
      - >-
        Alice & Bob custom options (e.g. average_nb_photons) are no longer accepted on
        backend.run() with the local provider — they must be passed to provider.get_backend().
    additions:
      - Migrated to Qiskit 1.3; default optimization_level for backend.transpile() raised from 1 to 2.
      - Transpilation fixed for backend targets with a Clifford + T only basis (CRY, RCCX, RCCCX still broken on macOS).
  - version: 1.0.0
    breaking:
      - Migrated to Qiskit 1.2 — qiskit execute() removed in favour of transpile() + backend.run().
      - circuit.cnot() must now be declared as circuit.cx().
      - Python environments built against earlier Qiskit versions must be recreated.
      - get_backend() options no longer mutate the provider object's default options for that backend.
    additions: []
  - version: 0.7.2
    breaking: []
    additions: [Bumped twine to 5.1.1.]
  - version: 0.7.1
    breaking: []
    additions: [Job status displayed with ipywidget in notebooks.]
  - version: 0.7.0
    breaking:
      - Deprecated Python 3.7 (ARM users could not install; numpy has no 3.7 ARM build).
      - Pinned maximum supported Python to 3.11 (3.12+ setuptools changes).
      - >-
        Changed the default remote API URL from api.alice-bob.com to api-gcp.alice-bob.com,
        following the release of Felis Cloud on Google Cloud Platform.
    additions:
      - Warning emitted when instantiating AliceBobRemoteProvider if a newer provider release exists on PyPI.
  - version: 0.6.0
    breaking: []
    additions: [Improved feedback while running circuits with the remote provider.]
  - version: 0.5.4
    breaking: []
    additions: [TDG gate supported on remote logical backends.]
  - version: 0.5.3
    breaking: []
    additions: [Fixed a transpilation issue blocking logical backends on the remote provider.]
  - version: 0.5.2
    breaking: []
    additions: [Fixed transpilation of cswap on logical backends.]
  - version: 0.5.1
    breaking: []
    additions: [Improved transpilation and scheduling for local backends, notably for QASM-imported programs.]
  - version: 0.5.0
    breaking: []
    additions: [Harmonised get_backend() behaviour between remote and local providers.]
  - version: 0.4.2
    breaking: []
    additions: [Released multi-qubit logical and physical targets on the remote provider.]
  - version: 0.4.1
    breaking: []
    additions: [Python 3.11 support.]
  - version: 0.4.0
    breaking: []
    additions: ['Added logical backends EMU:15Q:LOGICAL_EARLY and EMU:40Q:LOGICAL_TARGET.']