CI: Update version matrix

Author: effigies

.github/workflows/pre-release.yml

@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
-        python-version: ["3.8", "3.9", "3.10.0-rc.1"]
+        python-version: ["3.9", "3.10"]
         architecture: ['x64', 'x86']
         install: ['setup']
         check: ['test']
@@ -36,7 +36,7 @@ jobs:
         include:
           # Pydicom master
           - os: ubuntu-latest
-            python-version: 3.8
+            python-version: "3.10"
             install: setup
             check: test
             pip-flags: ''
@@ -47,10 +47,6 @@ jobs:
             architecture: x86
           - os: macos-latest
             architecture: x86
-          - os: windows-latest
-            python-version: "3.10.0-rc.1"
-          - os: macos-latest
-            python-version: "3.10.0-rc.1"
 
     env:
       DEPENDS: ${{ matrix.depends }}

.github/workflows/stable.yml

@@ -29,7 +29,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'windows-latest', 'macos-latest']
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9, "3.10"]
         architecture: ['x64', 'x86']
         install: ['pip']
         check: ['test']
@@ -39,52 +39,52 @@ jobs:
         include:
           # Basic dependencies only
           - os: ubuntu-latest
-            python-version: 3.6
+            python-version: 3.7
             install: setup
             check: test
             pip-flags: ''
             depends: REQUIREMENTS
             optional-depends: ''
           # Absolute minimum dependencies
           - os: ubuntu-latest
-            python-version: 3.6
+            python-version: 3.7
             install: setup
             check: test
             pip-flags: ''
             depends: MIN_REQUIREMENTS
             optional-depends: ''
           # Absolute minimum dependencies plus old MPL, Pydicom, Pillow
           - os: ubuntu-latest
-            python-version: 3.6
+            python-version: 3.7
             install: setup
             check: test
             pip-flags: ''
             depends: MIN_REQUIREMENTS
             optional-depends: MIN_OPT_DEPENDS
           # Clean install imports only with package-declared dependencies
           - os: ubuntu-latest
-            python-version: 3.6
+            python-version: 3.7
             install: pip
             check: skiptests
             pip-flags: ''
             depends: ''
           # Check all installation methods
           - os: ubuntu-latest
-            python-version: 3.8
+            python-version: "3.10"
             install: wheel
             check: test
             pip-flags: ''
             depends: REQUIREMENTS
             optional-depends: DEFAULT_OPT_DEPENDS
           - os: ubuntu-latest
-            python-version: 3.8
+            python-version: "3.10"
             install: sdist
             check: test
             pip-flags: ''
             depends: REQUIREMENTS
             optional-depends: DEFAULT_OPT_DEPENDS
           - os: ubuntu-latest
-            python-version: 3.8
+            python-version: "3.10"
             install: archive
             check: test
             pip-flags: ''

.travis.yml

@@ -6,7 +6,7 @@
 
 os: linux
 arch: arm64
-dist: xenial
+dist: focal
 language: python
 cache: pip
 
@@ -21,10 +21,10 @@ env:
         - CHECK_TYPE="test"
 
 python:
-    - 3.6
     - 3.7
     - 3.8
     - 3.9
+    - "3.10"
 
 # Set up virtual environment, build package, build from depends
 before_install: