Update minimum required version of optional dependencies

Author: sliverc

CHANGELOG.md

@@ -17,7 +17,10 @@ any parts of the framework not mentioned in the documentation should generally b
 ### Changed
 
 * Adjusted to only use f-strings for slight performance improvement.
-* Set minimum required version of inflection to 0.5.0.
+* Set minimum required version of inflection to 0.5.
+* Set minimum required version of Django Filter to 2.4.
+* Set minimum required version of Polymorphic Models for Django to 3.0.
+* Set minimum required version of PyYAML to 5.4.
 
 ### Removed
 

README.rst

@@ -96,6 +96,8 @@ We **highly** recommend and only officially support the latest patch release of
 
 Generally Python and Django series are supported till the official end of life. For Django REST framework the last two series are supported.
 
+For optional dependencies such as Django Filter only the latest release is officially supported even though lower versions might work as well.
+
 ------------
 Installation
 ------------

docs/getting-started.md

@@ -59,6 +59,8 @@ We **highly** recommend and only officially support the latest patch release of
 
 Generally Python and Django series are supported till the official end of life. For Django REST framework the last two series are supported.
 
+For optional dependencies such as Django Filter only the latest release is officially supported even though lower versions might work as well.
+
 ## Installation
 
 Install using `pip`...

setup.py

@@ -101,9 +101,9 @@ def get_package_data(package):
         "django>=2.2,<4.1",
     ],
     extras_require={
-        "django-polymorphic": ["django-polymorphic>=2.0"],
-        "django-filter": ["django-filter>=2.0"],
-        "openapi": ["pyyaml>=5.3", "uritemplate>=3.0.1"],
+        "django-polymorphic": ["django-polymorphic>=3.0"],
+        "django-filter": ["django-filter>=2.4"],
+        "openapi": ["pyyaml>=5.4", "uritemplate>=3.0.1"],
     },
     setup_requires=wheel,
     python_requires=">=3.6",