Drop support for Python 3.9.

Author: icemac

.github/workflows/test.yml

@@ -20,7 +20,6 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [
-          "3.9",
           "3.10",
           "3.11",
           "3.12",
@@ -36,9 +35,6 @@ jobs:
           "8.4.*",
           "main",
         ]
-        exclude:
-        - python-version: "3.9"
-          pytest-version: "main"
     steps:
       - uses: actions/checkout@v5
 

CHANGES.rst

@@ -4,7 +4,10 @@ Changelog
 16.1 (unreleased)
 -----------------
 
-- Changed "localhost" to "127.0.0.1" to avoid bad hostname resolution
+- Changed "localhost" to "127.0.0.1" to avoid bad hostname resolution.
+
+- Drop support for Python 3.9.
+
 
 16.0.1 (2025-09-02)
 -------------------

tox.ini

@@ -11,8 +11,7 @@ max-line-length = 88
 [tox]
 envlist =
     linting
-    py{39,310,311,312,313,314,py3}-pytest{80,81,82,83,84}
-    py{310,311,312,313,314,py3}-pytest{main}
+    py{310,311,312,313,314,py3}-pytest{80,81,82,83,84}
     docs
 minversion = 4.0