Changelog for QCoDeS 0.22.0

The January 2021 release of QCoDeS.

Breaking Changes:

Removed deprecated SD_common modules from Keysight (2544)
Removed deprecated add_parameter method from DataSet (2582)

Deprecations:

Unused semi private functions modify_values and modify_many_values are deprecated (2582)

New:

Add native and convenient XArray data export methods to DataSet supporting concatenation, also improve the Pandas DataFrames export methods (2507)
Possibility to measure parameters in a separate thread per instrument inside doNd functions (2616)
guid_helpers: Extracting guids from database files and list of strings (2541)

Improved:

Ravel data before inserting into DataSet cache (2664)
Removed duplicated attributes in channel.py (2560)
Fix header levels and section structure in Measurement example notebook (2624)
doNd notebook update: the notebook compares doNd with Measurement context manager (2512)
Allow passing ParamSpecBase objects to DataSet's get_parameter_data and related methods(2655)

New drivers:

Keysight N9030B Spectrum Analyzer (2553)

Improved drivers:

Keysight B1500: support measuring any number of channels during IV sweep (2649)
Add checks for signal current level and voltage level queries in Keysight E4980A (2561)
Set signal mode and snapshot_exclude in Keysight E4980A (2612)
Add input offset voltage parameter to Basel SP983C (2648)
Add test to ensure that AWG70000A driver throws a warning when waveform is clipped (2585)

Under the hood:

Add support for type checking with Numpy 1.20 (2499)
Minor typing improvements (2546)
Improved minimum requirements in qcodes setup (2569)
Improved tests (2581)
Filter google rcp related warnings (2598)
Removed unneeded html theme path (2608)