QCoDeS 0.62.0

[Cina Arjmand (CinaArjmand)]

QCoDeS 0.62.0 (2026-10-26)

Improved:

• qcodes.utils.is_qcodes_installed_editably no longer shells out to pip to detect an
  editable install. The editable status is now read directly from the installed package
  metadata (the :pep:610 direct_url.json file), which both pip and uv write.
  This means the check also works in environments where pip is not installed, such as
  environments managed by uv, and it no longer requires spawning a subprocess. Detect editable install from metadata instead of pip #8580
• Add :func:qcodes.dataset.get_open_connections and
  :func:qcodes.dataset.close_all_connections to inspect and close tracked database
  connections. Connections owned by the exiting thread are also closed automatically
  at interpreter shutdown. Test cleanup closes connections opened during each test
  without closing connections owned by broader-scoped fixtures or other threads. Add util to close db connections #8626
• The type annotations of Station.load_all_instruments now accept calling it without
  arguments or with only one of only_names and only_types. Previously these valid
  calls matched none of the overloads and were rejected by static type checkers. Add missing type annotations. #8644

Improved Drivers:

• Allow the Yokogawa GS200 driver to use the documented generated output ranges,
  including 12 V on the 10 V source range, while retaining the 32 V and 200 mA
  maximum output limits for direct output and ramps. fix(driver): honor GS200 generated output limits #8577
• AlazarTechATS.acquire is now annotated to accept any AcquisitionInterface as
  acquisition_controller, not only an AcquisitionController, matching what it supports
  at runtime. AcquisitionController now passes its type parameter on to
  AcquisitionInterface, so the return type of acquire is inferred from the
  post_acquire return type of the controller. Subclasses of AcquisitionController[T]
  whose post_acquire does not return T will now be reported by static type checkers. Add missing type annotations. #8644
• Added missing type annotations to the optional arguments of the Keysight B1500
  MessageBuilder methods ercmaio, lst_query, pch_query, sprm, tc
  and wat. Add missing type annotations. #8644
• The Galil DMC-41x3 driver now retries empty or malformed controller replies when polling motion status and axis positions, and waiting for motion to complete is bounded by a timeout (300 s by default) that raises TimeoutError. Each motion-status query is limited by the remaining motion timeout, with millisecond resolution, and restores the original I/O timeout afterward. Connecting now falls back through the --direct -s ALL and -s ALL options before using the bare address. Pressing Ctrl-C while waiting for motion now calls abort() and then turns the axes off with MO. Harden Galil DMC-41x3 motion polling and connection handling #8647

Under the hood:

• QCoDeS is now tested against Python 3.15 on Linux. The zhinst-qcodes test dependency is not installed
  on Python 3.15 since zhinst-core does not yet provide wheels for it. Test against Python 3.15 on Linux #8581
• The minimum supported version of typing_extensions is now 4.12.0. Older versions do not
  apply the default of a TypeVar, so subscripting a parameter with only its value type at
  runtime, e.g. Parameter[int], failed with TypeError: Too few arguments on Python 3.12. Add missing type annotations. #8644

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This discussion was created from the release QCoDeS 0.62.0.