QCoDeS 0.58.0 (2026-05-04)

This will be the last version to support Python 3.11. Python 3.12 will be required starting from QCoDeS 0.59.0.

Breaking Changes:

• All arguments to Parameter classes and subclasses, except name, are now keyword-only. Previously deprecated positional arguments have been removed. #7911
• Yokogawa GS200: The step and delay arguments of ramp_voltage and ramp_current have been deprecated in favor of the ramp_step and ramp_rate instrument parameters. #8025

Improved:

• Errors raised inside a @property getter on a subclass of :class:~qcodes.utils.DelegateAttributes (such as :class:~qcodes.instrument.Instrument) are now surfaced with their original traceback, instead of being masked by a generic AttributeError: ... object and its delegates have no attribute ... message. The underlying cause of the failure is now visible in the traceback, making misbehaving properties much easier to debug. #5518
• Parameters using has_control_of are now correctly handled when exporting to xarray. Controlled parameters are no longer treated as independent top-level parameters, preventing duplicate data rows. Additionally, inferred parameters are now included as data variables in the xarray dataset when exporting via the pandas-based path, and a warning is logged when the inferred parameter data size does not match the expected xarray dataset dimensions. #7725
• Add ParameterBaseKWArgs and ParameterKWArgs TypedDicts for typing **kwargs forwarded through the Parameter class hierarchy. Subclasses of Parameter can now use **kwargs: Unpack[ParameterKWArgs] for statically checked kwargs forwarding. #8024
• Added calibration due date to Keithley calibration utility functions. #8040
• Fixed _get_data_from_ds to correctly handle datasets with incorrect multi-index structure during export by adding a fallback data lookup. #8080

Improved Drivers:

• The TektronixAWG5014 driver has been refactored to use InstrumentChannel submodules. Per-channel parameters (e.g. amp, offset, state) are now accessed via awg.ch1.amp instead of awg.ch1_amp, and marker parameters via awg.ch1.m1.high instead of awg.ch1_m1_high. The old flat attribute names still work but emit a deprecation warning. The example notebook has been updated accordingly. #7996
• Keysight 344xxA: Add SCPI mnemonics ('MIN', 'MAX', 'DEF') to allowed values where allowed Oxford Mercury IPS: Allow setting current ramp rate and target Oxford Triton: Also assume magnet is not available if there is a communication timeout Yokagawa GS200 Program: Validate program times on multiples of the internal clock rate of 0.1s Yokagawa GS200 Program: Only add trigger parameter if monitor option is installed Yokagawa GS200 Program: Add get parser to count; allow setting to SCPI mnemonics 'MIN', 'MAX'. Yokagawa GS200 Program: Add hold(), pause(), cont() methods. Yokagawa GS200: Add parameters reading out device registers (status_byte, standard_event_register, extended_event_register, condition_register)