chore: remove 3.8 and update to 3.10

.github/workflows/framework-tests.yaml

@@ -47,9 +47,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: ["3.8", "3.10", "3.12"]
-        exclude:
-        - {python-version: "3.8", os: "macos-latest"}  # macos-14 is arm64, and there's no Python 3.8 build for arm64
+        python-version: ["3.10", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
@@ -72,7 +70,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python-version: ["3.8", "3.10", "3.12"]
+        python-version: ["3.10", "3.12"]
 
     steps:
       - uses: actions/checkout@v4
@@ -104,10 +102,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
-        exclude:
-        - {python-version: "3.8", os: "macos-latest"}  # macos-14 is arm64, and there's no Python 3.8 build for arm64
-        - {python-version: "3.9", os: "macos-latest"}  # macos-14 is arm64, and there's no Python 3.9 build for arm64
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/hello-charm-tests.yaml

@@ -21,10 +21,10 @@ jobs:
           - charm-repo: juju/hello-juju-charm
             commit: 046b8ce758660d5aa9cf05207e2370fcbab688d0  # 2021-12-16T10:10:24Z
     steps:
-      - name: Set up Python 3.8
+      - name: Set up Python 3.10
         uses: actions/setup-python@v5
         with:
-          python-version: '3.8'
+          python-version: '3.10'
 
       - name: Checkout the ${{ matrix.charm-repo }} repository
         uses: actions/checkout@v4

.github/workflows/publish-ops-scenario.yaml

@@ -3,6 +3,7 @@ on:
   push:
     tags:
       - '2.*'
+      - '3.*'
 
 permissions: {}
 

.github/workflows/publish-ops-tracing.yaml

@@ -3,6 +3,7 @@ on:
   push:
     tags:
       - '2.*'
+      - '3.*'
 
 permissions: {}
 

.github/workflows/publish-ops.yaml

@@ -7,6 +7,7 @@ on:
       # will likely be publishing at least three packages: ops, ops-scenario,
       # and ops-harness.
       - '2.*'
+      - '3.*'
 
 permissions: {}
 

pyproject.toml

@@ -2,7 +2,7 @@
 name = "ops"
 description = "The Python library behind great charms"
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 authors = [
     {name="The Charm Tech team at Canonical Ltd."},
 ]
@@ -133,6 +133,7 @@ aggressive = 3
 # Linting tools configuration
 [tool.ruff]
 line-length = 99
+# FIXME
 target-version = "py38"
 extend-exclude = ["docs/conf.py", "docs/.sphinx/"]
 
@@ -321,7 +322,7 @@ builtins-ignorelist = ["id", "min", "map", "range", "type", "TimeoutError", "Con
 include = ["ops/*.py", "ops/_private/*.py", "test/*.py", "test/charms/*/src/*.py", "testing/src/*.py"]
 exclude = ["tracing/*"]
 extraPaths = ["testing", "tracing"]
-pythonVersion = "3.8" # check no python > 3.8 features are used
+pythonVersion = "3.10" # check no python > 3.10 features are used
 pythonPlatform = "All"
 typeCheckingMode = "strict"
 reportIncompatibleMethodOverride = false

testing/pyproject.toml

@@ -25,7 +25,7 @@ dependencies = [
     "PyYAML>=6.0.1",
 ]
 readme = "README.md"
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 
 classifiers = [
     "Development Status :: 5 - Production/Stable",

tox.ini

@@ -75,7 +75,7 @@ allowlist_externals = cp
 dependency_groups = unit, static
 commands = pyright {posargs}
 
-[testenv:py{3.8,3.10,3.12}-unit]
+[testenv:py{3.10,3.12}-unit]
 runner = uv-venv-lock-runner
 base=unit
 
@@ -151,7 +151,7 @@ commands =
         {[vars]testing_tst_path}benchmark \
         {posargs}
 
-[testenv:py{3.8,3.10,3.12}-pebble]
+[testenv:py{3.10,3.12}-pebble]
 runner = uv-venv-lock-runner
 base=pebble
 

tracing/pyproject.toml

@@ -2,7 +2,7 @@
 name = "ops-tracing"
 version = "3.0.0.dev0"
 description = "The tracing facility for the Ops library."
-requires-python = ">=3.8"
+requires-python = ">=3.10"
 readme = "README.md"
 authors = [
     {name="The Charm Tech team at Canonical Ltd."},
@@ -17,8 +17,6 @@ classifiers = [
     "Operating System :: POSIX :: Linux",
     "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",
     "Programming Language :: Python :: 3.12",
@@ -58,6 +56,7 @@ build-backend = "hatchling.build"
 
 [tool.ruff]
 line-length = 99
+# FIXME
 target-version = "py38"
 
 [tool.ruff.format]
@@ -119,5 +118,5 @@ ignore = [
 [tool.pyright]
 exclude = [".tox", ".venv", "ops_tracing/vendor"]
 extraPaths = ["..", "../testing"]
-pythonVersion = "3.8" # check no python > 3.8 features are used
+pythonVersion = "3.10" # check no python > 3.10 features are used
 pythonPlatform = "All"

tracing/tox.ini

@@ -7,7 +7,7 @@ deps =
     -e ../testing
     -e .
 
-[testenv:py{3.8,3.10,3.12}-unit]
+[testenv:py{3.10,3.12}-unit]
 base=unit
 
 [testenv:unit]