Drop support for 3.9, which is EOL, add 3.14 to CI.

Author: Julian

.github/workflows/ci.yml

@@ -45,10 +45,10 @@ jobs:
         posargs: [""]
         include:
           - os: ubuntu-latest
-            noxenv: "tests-3.13(format)"
+            noxenv: "tests-3.14(format)"
             posargs: coverage github
           - os: ubuntu-latest
-            noxenv: "tests-3.13(no-extras)"
+            noxenv: "tests-3.14(no-extras)"
             posargs: coverage github
         exclude:
           - os: macos-latest
@@ -88,11 +88,12 @@ jobs:
         uses: actions/setup-python@v6
         with:
           python-version: |
-            3.9
             3.10
             3.11
             3.12
             3.13
+            3.14
+            3.14t
             pypy3.11
           allow-prereleases: true
       - name: Enable UTF-8 on Windows

jsonschema/_format.py

@@ -13,7 +13,7 @@
 _FormatCheckCallable = typing.Callable[[object], bool]
 #: A format checker callable.
 _F = typing.TypeVar("_F", bound=_FormatCheckCallable)
-_RaisesType = typing.Union[type[Exception], tuple[type[Exception], ...]]
+_RaisesType = type[Exception] | tuple[type[Exception], ...]
 
 _RE_DATE = re.compile(r"^\d{4}-\d{2}-\d{2}$", re.ASCII)
 

jsonschema/_types.py

@@ -9,8 +9,8 @@
 from jsonschema.exceptions import UndefinedTypeCheck
 
 if TYPE_CHECKING:
-    from collections.abc import Mapping
-    from typing import Any, Callable
+    from collections.abc import Callable, Mapping
+    from typing import Any
 
 
 # unfortunately, the type of HashTrieMap is generic, and if used as an attrs

jsonschema/_typing.py

@@ -1,8 +1,8 @@
 """
 Some (initially private) typing helpers for jsonschema's types.
 """
-from collections.abc import Iterable
-from typing import Any, Callable, Protocol, Union
+from collections.abc import Callable, Iterable
+from typing import Any, Protocol
 
 import referencing.jsonschema
 
@@ -20,7 +20,7 @@ def __call__(
         ...
 
 
-id_of = Callable[[referencing.jsonschema.Schema], Union[str, None]]
+id_of = Callable[[referencing.jsonschema.Schema], str | None]
 
 
 ApplicableValidators = Callable[

noxfile.py

@@ -37,7 +37,7 @@
     "The Unlicense (Unlicense)",
 ]
 
-SUPPORTED = ["3.9", "3.10", "pypy3.11", "3.11", "3.12", "3.13"]
+SUPPORTED = ["3.10", "pypy3.11", "3.11", "3.12", "3.13", "3.14t", "3.14"]
 LATEST_STABLE = SUPPORTED[-1]
 
 nox.options.default_venv_backend = "uv|virtualenv"

pyproject.toml

@@ -8,7 +8,7 @@ source = "vcs"
 [project]
 name = "jsonschema"
 description = "An implementation of JSON Schema validation for Python"
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 license = "MIT"
 license-files = ["COPYING"]
 keywords = [
@@ -26,11 +26,11 @@ classifiers = [
   "Intended Audience :: Developers",
   "Operating System :: OS Independent",
   "Programming Language :: Python",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
   "Topic :: File Formats :: JSON",
@@ -193,7 +193,6 @@ ignore = [
   "SLF001",  # Private usage within this package itself is fine
   "TD",      # These TODO style rules are also silly
   "TRY003",  # Some exception classes are essentially intended for free-form
-  "UP007",   # We support 3.9
 ]
 
 [tool.ruff.lint.flake8-pytest-style]