Merge branch 'master' into prevent_save_config_to_home

docs/changes/0.15.0a1.rst

@@ -0,0 +1,71 @@
+Changelog for QCoDeS 0.15.0a1
+=============================
+
+The June 2020 alpha release of QCoDeS
+
+Breaking Changes:
+_________________
+
+* ``GroupParameter.group``, ``Group.parameters`` and ``Group.instrument`` are
+  now all read only properties (#2031).
+* The public attributes ``Group.get_cmd`` and ``Group.get_cmd`` have
+  been removed (#2031).
+* It is now an error to supply get/set_cmd, if get/set_raw is not abstract
+  (#2015).
+
+New drivers:
+____________
+
+* Add Zurich Instruments drivers. The old ZIUHFLI driver is deprecated. The
+  actual implementation is in
+  `zhinst-qcodes <https://github.com/zhinst/zhinst-qcodes/>`_
+  as described in
+  `this blog <https://blogs.zhinst
+  .com/andrea/2020/05/24/control-your-measurements-with-qcodes-and-labber/>`_
+  (#2025).
+
+
+
+Improved drivers:
+_________________
+
+* New features are added to Keysight B1517A driver to allow IV
+  staircase sweep measurements (#2028).
+* Various improvements are done on B1520A driver, such as, parsing correctly
+  the wrong output floats ('-0.-1') from the instrument until new firmware
+  release (#2023), improved testing (#2027), fixing spot measurement of
+  capacitance checking for wrong impedance model, and working with
+  ac_dc_volt_monitor=True (#2020).
+* Now on_off_val_mapping is used instead of a custom parser in Agilent
+  E8527D (#2030).
+* The parameter limits are added for the R&S ZNB-40 VNA R&S (#2029).
+
+
+
+Improved:
+_________
+* The DelegateParameter is now allowed to change source and also support a
+  None source (#2005).
+* The GroupParameter now correctly update their cache when a single
+  parameter in the group has been set or captured (#2031).
+* The GroupParameter now correctly implements mappings between
+  ``value`` and ``raw_value`` e.g. ``scale`` and ``offset`` (#2031).
+* Snapshot_base introduce new update=None, and use cache in parameter's
+  snapshot_base (#1833).
+* Now initial cache value can be set to the Parameter using kwarg
+  ``initial_cache_val`` (#1840).
+* The snapshots of stations and instruments can also be diffed now using
+  diff_param_values (#2021).
+
+
+
+Under the hood:
+_______________
+
+* New lines are now handled correctly on windows (#2026).
+* In the ``Parameter`` class, the gettable/settable have become read only
+  property (#2024).
+* Parameter cache.get is refactored to make the logic a bit more clear. Its
+  functionality remains the same (#2008).
+* The loop data location in channels test is changed for pytest-xdist to work
+  (#2010).

docs/changes/index.rst

@@ -30,4 +30,4 @@ Changelogs
    0.12.1 <0.12.1>
    0.13.0 <0.13.0>
    0.14.0 <0.14.0>
-   0.15.0 <0.15.0>
+   0.15.0a1 <0.15.0a1>