Add Python 3.14 support, drop Python 3.10

- Add Python 3.14 classifier, remove Python 3.10 classifier
- Change requires-python from ">=3.13,<3.14" to ">=3.13"
- Fix formatting in dev dependencies list
- Add trailing newline to pr_code_changes.yaml

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: MaxGhenis

.github/workflows/pr_code_changes.yaml

@@ -42,7 +42,7 @@ jobs:
             with:
               workload_identity_provider: "projects/322898545428/locations/global/workloadIdentityPools/policyengine-research-id-pool/providers/prod-github-provider"
               service_account: "policyengine-research@policyengine-research.iam.gserviceaccount.com"
-              
+
           - name: Install package
             run: uv pip install -e .[dev] --system
           - name: Install policyengine
@@ -65,4 +65,4 @@ jobs:
               fail_ci_if_error: false
               verbose: true
           - name: Test documentation builds
-            run: make documentation
+            run: make documentation

changelog.d/upgrade-python-3.14.changed.md

@@ -0,0 +1 @@
+Add Python 3.14 classifier and remove upper bound on requires-python.

pyproject.toml

@@ -16,13 +16,13 @@ classifiers = [
     "License :: OSI Approved :: GNU Affero General Public License v3",
     "Operating System :: POSIX",
     "Programming Language :: Python",
-    "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",
     "Topic :: Scientific/Engineering :: Information Analysis",
 ]
-requires-python = ">=3.13,<3.14"
+requires-python = ">=3.13"
 dependencies = [
     "policyengine-core>=3.23.6",
     "microdf-python>=1.2.1",
@@ -67,8 +67,8 @@ dev = [
     "snowballstemmer>=2,<3",
     "jupyter-book>=2.0.0a0",
     "linecheck",
-    "rich",    "towncrier>=24.8.0",
-
+    "rich",
+    "towncrier>=24.8.0",
 ]
 
 [tool.pytest.ini_options]