[build] Drop Python 3.9 support (EOL)

Author: Breakthrough

.github/workflows/build.yml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-14, macos-latest, ubuntu-22.04, ubuntu-latest, windows-latest]
-        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4

docs/changelog.md

@@ -391,4 +391,5 @@ This version of DVR-Scan includes a new, faster background subtraction algorithm
 
 ### 1.9
 
+ - [general] Minimum Python version is now 3.10 ([EOL](https://devguide.python.org/versions/))
  * [bugfix] Fix `quiet-mode` setting (`-q`/`--quiet` flag) still allowing extraneous output

docs/download.md

@@ -21,7 +21,7 @@ hide:
 
         python3 -m pip install dvr-scan
 
-DVR-Scan requires Python 3.9 or higher to run, and works on Windows, Linux, and OSX. [`pipx` is recommended](https://pipx.pypa.io/stable/installation/) for installing DVR-Scan, however installing via `pip` or from source is also supported.
+DVR-Scan requires Python 3.10 or higher to run, and works on Windows, Linux, and OSX. [`pipx` is recommended](https://pipx.pypa.io/stable/installation/) for installing DVR-Scan, however installing via `pip` or from source is also supported.
 
 Linux users may need to install the `python3-tk` package (e.g. `sudo apt install python3-tk`) to run the region editor.
 

setup.cfg

@@ -32,7 +32,6 @@ classifiers =
     License :: OSI Approved :: MIT License
     Operating System :: OS Independent
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
@@ -63,7 +62,7 @@ packages =
     dvr_scan.docs.assets
     dvr_scan.docs.assets.javascripts
     dvr_scan.docs.assets.stylesheets
-python_requires = >=3.9
+python_requires = >=3.10
 include_package_data = True
 
 [options.entry_points]