From e4e195e0259f83e2f11cd985f4138c343c53abed Mon Sep 17 00:00:00 2001
From: Cooper Ry Lees <me@cooperlees.com>
Date: Tue, 21 Oct 2025 21:02:59 -0500
Subject: [PATCH 1/2] Add inital CI for 3.14
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- State in pyproject that we somewhat work in 3.14
- Enable py314 tox
- Add base testing action so we don't regress

**Note:** We don't support some 3.14 grammar/parsing still

Test:
- Install in 3.14 and format something
```
MacBookPro:black cooper$ python3 -V
Python 3.14.0
MacBookPro:black cooper$ python3 -m venv --upgrade-deps /tmp/tb
t/mp/MacBookPro:black cooper$ /tmp/tb/bin/pip install -e .
...
MacBookPro:black cooper$ time /tmp/tb/bin/black ../bandersnatch/ ../flake8-bugbear/
All done! ✨ 🍰 ✨
134 files left unchanged.

real    0m0.189s
user    0m0.159s
sys    0m0.036s
```
- Run linting/tests:
- `/tmp/tb/bin/tox -e py314`
- `/tmp/tb/bin/pre-commit run -a`
  - TODO: flake8 + mypy still do not pass in 3.14
  - Let's do in dedicated PR later
---
 .github/workflows/test.yml | 2 +-
 pyproject.toml             | 1 +
 tox.ini                    | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e4cbe736dfd..2dd1899fb61 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -31,7 +31,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12.4", "3.13", "pypy-3.9"]
+        python-version: ["3.9", "3.10", "3.11", "3.12.4", "3.13", "3.14", "pypy-3.9"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
 
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index 11886e4a3c7..ed787d2422f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,6 +60,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Software Development :: Libraries :: Python Modules",
   "Topic :: Software Development :: Quality Assurance",
 ]
diff --git a/tox.ini b/tox.ini
index d4450219dc0..12493c42686 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 isolated_build = true
-envlist = {,ci-}py{39,310,311,312,313,py3},fuzz,run_self,generate_schema
+envlist = {,ci-}py{39,310,311,312,313,314,py3},fuzz,run_self,generate_schema
 
 [testenv]
 setenv =

From f2ca52ed7e1a1e4e3621110fbd9bd96a6f8425d9 Mon Sep 17 00:00:00 2001
From: Cooper Ry Lees <me@cooperlees.com>
Date: Tue, 21 Oct 2025 21:21:56 -0500
Subject: [PATCH 2/2] Add CHANGES.md entries

---
 CHANGES.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index cb71e3f4ec4..2d7f8684ca8 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -9,6 +9,8 @@
 
 <!-- Include any especially major or disruptive changes here -->
 
+- Enable base 3.14 support (#4804)
+
 ### Stable style
 
 <!-- Changes that affect Black's stable style -->
@@ -59,6 +61,7 @@
 
 <!-- For example, Docker, GitHub Actions, pre-commit, editors -->
 
+- Enable 3.14 base CI (#4804)
 - Enhance GitHub Action `psf/black` to support the `required-version` major-version-only
   "stability" format when using pyproject.toml (#4770)
 - Improve error message for vim plugin users. It now handles independently vim version