Drop Python 3.8

.github/workflows/ci.yml

@@ -26,21 +26,21 @@ jobs:
     with:
       submodules: false
       coverage: codecov
-      toxdeps: "'tox<4' tox-pypi-filter"
+      toxdeps: tox-pypi-filter
       envs: |
-        - linux: py310
+        - linux: py311
 
   test:
     needs: [core]
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
       submodules: false
       coverage: codecov
-      toxdeps: "'tox<4' tox-pypi-filter"
+      toxdeps: tox-pypi-filter
       envs: |
-        - macos: py38
+        - macos: py310
         - windows: py39
-        - linux: py38-oldestdeps
+        - linux: py39-oldestdeps
         - linux: build_docs
           posargs: ''
           pytest: false
@@ -57,10 +57,10 @@ jobs:
       )
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
-      default_python: '3.8'
+      default_python: '3.9'
       submodules: false
       coverage: codecov
-      toxdeps: "'tox<4' tox-pypi-filter"
+      toxdeps: tox-pypi-filter
       envs: |
         - linux: py311-devdeps
         - linux: py39-conda

.rtd-environment.yml

@@ -2,6 +2,6 @@ name: rtd_ndcube
 channels:
   - conda-forge
 dependencies:
-  - python=3.10
+  - python=3.11
   - pip
   - graphviz!=2.42.*,!=2.43.*

.sunpy-template.yml

@@ -7,7 +7,7 @@ default_context:
   license: BSD 2-Clause
   project_url: http://docs.sunpy.org/projects/ndcube/
   github_repo: sunpy/ndcube
-  minimum_python_version: 3.8
+  minimum_python_version: 3.9
   use_compiled_extensions: n
   include_example_code: n
   _provide_setuppy_fallback: y

docs/installation.rst

@@ -4,7 +4,7 @@
 Installing ``ndcube``
 *********************
 
-`ndcube` requires Python >=3.8, ``astropy``>=4.2, ``numpy``>=1.1.7 and ``gwcs``>=0.15.
+`ndcube` requires Python >=3.9, ``astropy``>=5.0, ``numpy``>=1.21 and ``gwcs``>=0.18.
 
 Installing the release version
 ------------------------------

setup.cfg

@@ -27,7 +27,6 @@ classifiers =
   Operating System :: OS Independent
   Programming Language :: Python
   Programming Language :: Python :: 3
-  Programming Language :: Python :: 3.8
   Programming Language :: Python :: 3.9
   Programming Language :: Python :: 3.10
   Programming Language :: Python :: 3.11
@@ -37,11 +36,11 @@ classifiers =
 zip_safe = False
 packages = find:
 include_package_data = True
-python_requires = >=3.8
+python_requires = >=3.9
 install_requires =
-  astropy>=4.2
-  gwcs>=0.15
-  numpy>1.17
+  astropy>=5.0.6,!=5.1.0
+  gwcs>=0.18
+  numpy>=1.21.0
 
 [options.extras_require]
 tests =
@@ -50,7 +49,7 @@ tests =
     pytest-astropy
     pytest-mpl>=0.12
     scipy
-    sunpy>=4.0.0
+    sunpy>=5.0.0
 docs =
     matplotlib
     pytest-doctestplus>=0.9.0
@@ -60,9 +59,9 @@ docs =
     sphinx-gallery
     sphinxext-opengraph
     sunpy-sphinx-theme
-    sunpy>=4.0.0
+    sunpy>=5.0.0
 plotting =
-    matplotlib>=3.2
+    matplotlib>=3.5.0
     mpl_animators>=1.0
 reproject =
     reproject>=0.7.1

tox.ini

@@ -1,14 +1,9 @@
 [tox]
+min_version = 4.0
 envlist =
-    py{38,39,310}{,-devdeps,-online,-figure,-conda,-oldestdeps}
+    py{39,310,311}{,-devdeps,-online,-figure,-conda,-oldestdeps}
     build_docs
     codestyle
-requires =
-    setuptools >=56, !=61.0.0
-    pip >= 19.3.1
-    tox < 4
-    tox-pypi-filter >= 0.12
-isolated_build = true
 
 [testenv]
 pypi_filter = https://raw.githubusercontent.com/sunpy/sunpy/main/.test_package_pins.txt