whatsnew

Author: TomNicholas

doc/whats-new.rst

@@ -67,6 +67,8 @@ Deprecations
 - :py:meth:`xarray.open_mfdataset` will now error instead of warn when a value for ``concat_dim`` is
   passed alongside ``combine='by_coords'``.
   By `Tom Nicholas <https://github.com/TomNicholas>`_.
+- Removed the lock kwarg from the zarr and pydap backends, completing the deprecation cycle started in :issue:`5256`.
+  By `Tom Nicholas <https://github.com/TomNicholas>`_.
 
 Bug fixes
 ~~~~~~~~~