unpin cftime (#3463)

* unpin cftime

* Update ci/requirements/py36-min-all-deps.yml

Co-Authored-By: Spencer Clark <spencerkclark@gmail.com>

* do not pin to patch version

* add note on cftime=1.0.4

ci/requirements/py36-min-all-deps.yml

@@ -13,7 +13,7 @@ dependencies:
   - cartopy=0.17
   - cdms2=3.1
   - cfgrib=0.9
-  - cftime=1.0.3  # FIXME need 1.0.5 (not released yet); 1.0.4 is broken
+  - cftime=1.0
   - coveralls
   - dask=1.2
   - distributed=1.27

ci/requirements/py36.yml

@@ -9,7 +9,7 @@ dependencies:
   - cartopy
   - cdms2
   - cfgrib
-  - cftime<1.0.4  # FIXME need 1.0.5 (not released yet); 1.0.4 is broken
+  - cftime
   - coveralls
   - dask
   - distributed

ci/requirements/py37-windows.yml

@@ -9,7 +9,7 @@ dependencies:
   - cartopy
   # - cdms2  # Not available on Windows
   # - cfgrib  # Causes Python interpreter crash on Windows
-  - cftime<1.0.4  # FIXME need 1.0.5 (not released yet); 1.0.4 is broken
+  - cftime
   - coveralls
   - dask
   - distributed

ci/requirements/py37.yml

@@ -9,7 +9,7 @@ dependencies:
   - cartopy
   - cdms2
   - cfgrib
-  - cftime<1.0.4  # FIXME need 1.0.5 (not released yet); 1.0.4 is broken
+  - cftime
   - coveralls
   - dask
   - distributed

doc/whats-new.rst

@@ -22,6 +22,11 @@ Breaking changes
 ~~~~~~~~~~~~~~~~
 
 - Minimum cftime version is now 1.0.3. By `Deepak Cherian <https://github.com/dcherian>`_.
+
+  .. note::
+
+    cftime version 1.0.4 is broken (`cftime/126 <https://github.com/Unidata/cftime/issues/126>`_), use version 1.0.4.2 instead. 
+
 - All leftover support for dates from non-standard calendars through netcdftime, the
   module included in versions of netCDF4 prior to 1.4 that eventually became the
   cftime package, has been removed in favor of relying solely on the standalone