Changelog for QCoDeS 0.25.0
===========================

The April 2021 release of QCoDeS.

-----------------
Breaking Changes:
-----------------

- `get_data_by_id` no longer returns data for standalone parameters
  if there are no dependent parameters in the dataset. For the same reason
  `plot_by_id` and `plot_dataset` will no longer plot these standalone
  parameters. (:pr:`2918`)
- `xarray` exported data no longer exports extra metadata columns under the
  `extra_metadata` tag since the extra dictionary level prevents exporting to
  `netcdf` (:pr:`2934`)

------------
Deprecation:
------------

- `get_data_by_id` and `get_shaped_data_by_runid` are now deprecated. These
  functions now all have better alternatives in the build in `get_parameter_data` as well as `Xarray`
  and `Pandas` exporters. (:pr:`2921`, :pr:`2925`)

----
New:
----

- SP983c Basel IV amplifier remote control driver (:pr:`2707`)
- Add support for Keysight 34411A (:pr:`2927`)
- Added the functionality of getting guids from multiple run ids and directly
  from database (:pr:`2930`)
- NumpyJSONEncoder: Add support for the uncertanties' UFloat type (:pr:`2933`)
- Add conversion between qcodes legacy DataSet and xarray format (:pr:`2938`)

---------
Improved:
---------

- plot_dataset: Improved performance by using in memory cache when possible
  to avoid reloading data from disk (:pr:`2918`)
- contribution guidelines: remove no longer relevant sections and make the
  sections on naming somewhat less strict (:pr:`2937`)
- remove double assignment of dataset variable in example notebook
  of Performing-measurements-using-qcodes-parameters-and-dataset (:pr:`2926`)
- Update old driver notebooks (Agilent 34400A) docs (:pr:`2377`)
- Update link from NI VISA to Keysight IO Libraries Suite on 'Getting Started'
  Doc (:pr:`2948`)
- Removed ZI UHFLI notebook (:pr:`2893`)

-----------------
Improved drivers:
-----------------

- Significant performance improvement in Tektronix5014 driver (:pr:`2910`)
- AMI430 3D driver: allow instantiating from names of existing AMI430
  instances, next to from AMI430 instances only  driver (:pr:`2949`)
- AMI430 3D driver: add docstring, extra test for initializing from AMI430 by
  name  driver (:pr:`2951`)
- Driver sr830 update: Add ChannelTrace class and related parameter
  ch{ch}_datatrace which makes buffered acquisition easier.(:pr:`2894`)

---------------
Under the hood:
---------------

- Log sample_name, exp_name, dataset name when Measurement starts (:pr:`2952`)
- Move private dataset export functions to their own module (:pr:`2904`)
- Remove wait time test (:pr:`2935`)
- fix(logger): Disable conditionally start logging for Sphinx documentation
  (:pr:`2909`)
- Name legacy test datasets (:pr:`2950`)
- use python -m pip to upgrade pip in github actions (:pr:`2955`)