From 915063376c3bfaa0423a5aec15af84e03f646ccb Mon Sep 17 00:00:00 2001
From: Cora Schneck <22159116+cyschneck@users.noreply.github.com>
Date: Mon, 22 Apr 2024 16:02:05 -0600
Subject: [PATCH] Drop Python 3.9 Support (#599)

* remove 3.9 support and  workflows

* update release-notes.rst
---
 .github/workflows/ci-release.yml | 2 +-
 .github/workflows/ci.yml         | 2 +-
 build_envs/docs.yml              | 2 +-
 build_envs/environment.yml       | 2 +-
 docs/release-notes.rst           | 2 ++
 setup.cfg                        | 3 +--
 6 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci-release.yml b/.github/workflows/ci-release.yml
index cfd898e9..359a47ec 100644
--- a/.github/workflows/ci-release.yml
+++ b/.github/workflows/ci-release.yml
@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu-latest", "macos-latest", "windows-latest" ]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12"]
     steps:
       - name: checkout
         uses: actions/checkout@v4
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 797ac4f0..0edaefd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ "ubuntu-latest", "macos-14", "windows-latest" ]
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12"]
     steps:
       - name: checkout
         uses: actions/checkout@v4
diff --git a/build_envs/docs.yml b/build_envs/docs.yml
index 2064823c..50cf37ce 100644
--- a/build_envs/docs.yml
+++ b/build_envs/docs.yml
@@ -2,7 +2,7 @@ name: gc-docs
 channels:
     - conda-forge
 dependencies:
-    - python>=3.9,<3.13
+    - python>=3.10,<3.13
     - pre_commit
     - geocat-datafiles
     - geocat-viz
diff --git a/build_envs/environment.yml b/build_envs/environment.yml
index 903602d1..a5e986d6 100644
--- a/build_envs/environment.yml
+++ b/build_envs/environment.yml
@@ -2,7 +2,7 @@ name: geocat_comp_build
 channels:
   - conda-forge
 dependencies:
-  - python>=3.9,<3.13  # minimum support 3.9
+  - python>=3.10,<3.13  # minimum support 3.10
   - cf_xarray>=0.3.1    # min version 0.3.1 for dependencies
   - cftime
   - dask
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 64d8f2a3..3638519e 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -11,8 +11,10 @@ Upcoming release
 
 Internal Changes
 ^^^^^^^^^^^^^^^^
+* Drop Python 3.9 Support by `Cora Schneck`_ in (:pr:`599`)
 * Reduce DeprecationWarnings in testing by `Cora Schneck`_ in (:pr:`582`)
 
+
 v2024.03.0 (March 29, 2024)
 ---------------------------
 This release includes a bug fix for ``delta_pressure``.
diff --git a/setup.cfg b/setup.cfg
index 77037c1f..3fcbc5e6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,7 +15,6 @@ classifiers =
     Intended Audience :: Science/Research
     Programming Language :: Python
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
@@ -24,7 +23,7 @@ classifiers =
 [options]
 zip_safe = False
 include_package_data = True
-python_requires = >=3.9, <3.13
+python_requires = >=3.10, <3.13
 packages = find_namespace:
 setup_requires =
     setuptools_scm