From 77fbfe4e18aefe4ae55be7c26d41527d451c01a4 Mon Sep 17 00:00:00 2001
From: Keewis <keewis@posteo.de>
Date: Tue, 16 Mar 2021 16:09:51 +0100
Subject: [PATCH 1/4] add a py39 CI

---
 .github/workflows/ci.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 3b1514b703b..f45e0b4d2e1 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -35,7 +35,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.7", "3.8", "3.9"]
     steps:
       - uses: actions/checkout@v2
         with:

From babed30f6405c4f57b1263798d2a887022582c72 Mon Sep 17 00:00:00 2001
From: Keewis <keewis@posteo.de>
Date: Tue, 16 Mar 2021 16:10:10 +0100
Subject: [PATCH 2/4] add python 3.9 to the list of supported python versions

---
 setup.cfg | 1 +
 1 file changed, 1 insertion(+)

diff --git a/setup.cfg b/setup.cfg
index 5037cb9c584..7f973e39ad2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -66,6 +66,7 @@ classifiers =
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
     Topic :: Scientific/Engineering
 
 [options]

From 3bfe50ef46719e10eef3ca48b9297d2d7027efd0 Mon Sep 17 00:00:00 2001
From: Keewis <keewis@posteo.de>
Date: Tue, 16 Mar 2021 16:11:27 +0100
Subject: [PATCH 3/4] update the minimum supported versions

---
 setup.cfg | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/setup.cfg b/setup.cfg
index 7f973e39ad2..80785d6f108 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -75,8 +75,8 @@ zip_safe = False  # https://mypy.readthedocs.io/en/latest/installed_packages.htm
 include_package_data = True
 python_requires = >=3.7
 install_requires =
-    numpy >= 1.15
-    pandas >= 0.25
+    numpy >= 1.17
+    pandas >= 1.0
     setuptools >= 40.4  # For pkg_resources
 
 [options.extras_require]

From b72481af78173e01ccb2b667b7402f9bb2a2d1a5 Mon Sep 17 00:00:00 2001
From: Keewis <keewis@posteo.de>
Date: Tue, 16 Mar 2021 16:47:05 +0100
Subject: [PATCH 4/4] move the upstream-dev CI to py39 [skip-ci]
 [test-upstream]

---
 .github/workflows/upstream-dev-ci.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/upstream-dev-ci.yaml b/.github/workflows/upstream-dev-ci.yaml
index 038caa12cb7..8e8fc16f50b 100644
--- a/.github/workflows/upstream-dev-ci.yaml
+++ b/.github/workflows/upstream-dev-ci.yaml
@@ -43,7 +43,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.9"]
     outputs:
       artifacts_availability: ${{ steps.status.outputs.ARTIFACTS_AVAILABLE }}
     steps: