Version 0.16 release candidate (#232)

* Require Iris >=3 (just for the gdt90 changes).

* Whatsnew entry for requiring Iris 3.

* Set version string for release candidate.

* Test against Iris 3.0.0rc0 from conda-forge/rc_iris.

docs/ref/release_notes.rst

@@ -64,6 +64,14 @@ Bugs Fixed
   only the Iris coordinate system has changed.
   `(PR#223) <https://github.com/SciTools/iris-grib/pull/223>`_
 
+Dependencies
+^^^^^^^^^^^^
+
+* now requires Iris version >= 3.0
+  Needed for the bugfix in
+  `PR#223 <https://github.com/SciTools/iris-grib/pull/223>`_ .
+
+
 
 What's new in iris-grib v0.15.1
 -------------------------------

iris_grib/__init__.py

@@ -33,7 +33,7 @@
 from .message import GribMessage
 
 
-__version__ = '0.15.1'
+__version__ = '0.16.0rc0'
 
 __all__ = ['load_cubes', 'save_grib2', 'load_pairs_from_fields',
            'save_pairs_from_cube', 'save_messages']

requirements/ci/py36.yml

@@ -1,7 +1,7 @@
 name: iris-grib-dev
 
 channels:
-  - conda-forge
+  - conda-forge/label/rc_iris
 
 dependencies:
   - python=3.6
@@ -10,7 +10,7 @@ dependencies:
   - setuptools
 
 # Core dependencies.
-  - iris>=2.4
+  - iris=3.0.0rc0
   - python-eccodes
 
 # Optional dependencies.

requirements/ci/py37.yml

@@ -1,7 +1,7 @@
 name: iris-grib-dev
 
 channels:
-  - conda-forge
+  - conda-forge/label/rc_iris
 
 dependencies:
   - python=3.7
@@ -10,7 +10,7 @@ dependencies:
   - setuptools
 
 # Core dependencies.
-  - iris>=2.4
+  - iris=3.0.0rc0
   - python-eccodes
 
 # Optional dependencies.

requirements/core.txt

@@ -1,4 +1,4 @@
 # Core dependencies.
 
-scitools-iris>=2.4
+scitools-iris>=3.0.0rc0
 eccodes-python