Min Version: Update min versions for dependencies

Author: CSSFrancis

.github/workflows/build.yml

@@ -45,7 +45,7 @@ jobs:
           - os: ubuntu-latest
             python-version: 3.8
             OLDEST_SUPPORTED_VERSION: true
-            DEPENDENCIES: diffpy.structure==3.0.0 matplotlib==3.3 numpy==1.17 orix==0.9.0 scipy==1.1 tqdm==4.9
+            DEPENDENCIES: diffpy.structure== 3.0.2 matplotlib==3.5 numpy==1.17.3 orix==0.9.0 scipy==1.8 tqdm==4.9
             LABEL: -oldest
     steps:
       - uses: actions/checkout@v3

CHANGELOG.rst

@@ -26,8 +26,7 @@ Deprecated
 
 Removed
 -------
-- Removed support for Python 3.6, leaving 3.7 as the oldest supported version.
-- Removed support for Python 3.7, leaving 3.8 as the oldest supported version.
+- Removed support for Python 3.6 and Python 3.7, leaving 3.7 as the oldest supported version.
 
 Fixed
 -----

setup.py

@@ -74,13 +74,13 @@
     packages=find_packages(),
     extras_require=extra_feature_requirements,
     install_requires=[
-        "diffpy.structure   >= 3.0.0",  # First Python 3 support
+        "diffpy.structure   >= 3.0.2",
         "matplotlib         >= 3.3",
         "numba",
-        "numpy              >= 1.17",
+        "numpy              >= 1.17.3",
         "orix               >= 0.9",
         "psutil",
-        "scipy              >= 1.1",
+        "scipy              >= 1.8",
         "tqdm               >= 4.9",
         "transforms3d",
     ],