generated: '2026-08-23'
method: searched
source: https://docs.iqm.tech/iqm-client/changelog.html
mirror: https://pypi.org/project/iqm-client/ (CHANGELOG.md in the source distribution)
note: >-
  IQM publishes no product-level changelog for the Resonance service itself. What it does
  publish, and publishes well, is a dated Keep-a-Changelog-style file for the client library
  that fronts the API — with an explicit "Breaking changes" section per release. Because the
  client is the only public contract, this file IS the API changelog in practice, and it is
  where server-side URL and model changes surface. Recent window only.
scheme: semver
current_version: 35.0.1
current_date: '2026-08-05'
release_cadence: >-
  Frequent — 30 major/minor releases between 2025-08 and 2026-08. Major versions carry
  breaking changes and are documented as such.
breaking_change_discipline: explicit-section-per-release
entries:
- version: 35.0.1
  date: '2026-08-05'
  breaking: false
  highlights:
  - Packaging-only release for the 4.6.1 train. No functional changes.
- version: 35.0.0
  date: '2026-07-07'
  breaking: true
  highlights:
  - >-
    Retired three legacy IQM Server URL formats — URLs embedding the quantum computer name
    (https://resonance.meetiqm.com/garnet), the ":timeslot" suffix, and all
    https://cocos.resonance.meetiqm.com hosts. Callers must now use
    https://resonance.iqm.tech with the quantum_computer parameter.
  - Domain migrated from meetiqm.com to iqm.tech.
  - Client now raises on insecure plain-HTTP requests to remote hosts.
  - >-
    Security hardening — Authorization header is stripped on insecure remote HTTP calls and
    automatic redirects are blocked for mutating requests.
  - Added the iqm.qrisp_iqm package for executing Qrisp circuits, plus the qrisp QEC module.
  - iqm_server_url and quantum_computer readable from IQM_SERVER_URL / IQM_QUANTUM_COMPUTER.
- version: 34.0.0
  date: null
  date_note: IQM published this release without a date in the changelog — an honest gap in an otherwise dated file.
  breaking: true
  highlights:
  - Removed obsolete QuantumArchitectureSpecification and QuantumArchitecture models.
  - IQMClient.about now reports IQM OS, IQM Server and Station Control versions instead of Python dist versions.
  - Added IQMClient._debug_info for bug reports and support requests.
- version: 33.0.0
  date: '2025-11-19'
  breaking: true
  highlights:
  - >-
    IQMClient now connects to IQM Server rather than directly to the Station Control
    service — the `url` parameter became `iqm_server_url`, with a new `quantum_computer`
    parameter for multi-QPU servers.
  - Removed per-method timeout_secs in favour of the IQM_CLIENT_REQUESTS_TIMEOUT env var.
  - Circuit and job models moved to iqm.station_control.interface.models.
- version: 32.1.0
  date: '2025-10-13'
  breaking: false
- version: 32.0.0
  date: '2025-10-09'
  breaking: true
- version: 31.0.0
  date: '2025-09-11'
  breaking: true
- version: 30.0.0
  date: '2025-08-20'
  breaking: true