[brndnmtthws]

Summary

Add Python 3.15 to CI and make it the default: test matrices in all three workflows gain 3.15, publish/docker build images, .python-version, and Dockerfile move to 3.15, requires-python widens to >=3.11,<3.16, and the lockfile resolves 3.15 wheels.

User Impact

CI covers 3.15; local dev (uv sync via .python-version) and Docker builds run 3.15.0 stable. No trading behavior changes.

Root Cause

3.15 final shipped but the repo pinned 3.14 as default and capped requires-python at <3.15, so 3.15 was untested and uninstallable.

Fix

• CI matrices: python-test, python-publish, docker-publish test 3.11–3.15; publish/docker build steps use 3.15.
• Default: .python-version 3.15, Dockerfile uv python install 3.15 / venv, README range 3.11–3.15.
• Packaging: requires-python >=3.11,<3.16, lockfile regenerated for 3.15 wheels.
• Tooling: uv-pre-commit hooks bumped 0.9.8 → 0.13.1 (uv ≤0.12 only knows the 3.15 RC; 0.13 resolves 3.15.0 final). CI's setup-uv@v7 and the Dockerfile installer already track latest uv, so no bump needed there.
• Deps: pydantic 2.12.5→2.14.1 (+pydantic-core 2.41.5→2.50.1), numpy 2.4.1→2.5.4, pandas 3.0.0→3.0.6, typing-extensions/inspection — the locked pydantic-core used PyO3 0.26 (max Python 3.14) and had no cp315 wheel, so 3.15 sync failed building from source.

Validation

• uv run pytest -q tests under 3.15.0: 818 passed.
• ruff check --diff, ruff format --check --diff, ty check: all clean.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-14T22:28:17.264320Z	00b9380	Draft marked ready
🔒 Security Review	✅ Completed 2026-10-14T22:27:36.196705Z	00b9380	Draft marked ready

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 00b93800bb

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Upgrade greenlet before locking Python 3.15

On a clean Python 3.15 sync—especially on Windows or any host without a C++ toolchain—the widened lock still selects greenlet==3.3.0 at lines 268–271, which has no cp315 wheel and predates Python 3.15 support. The greenlet changelog says preliminary 3.15 support arrived in 3.5.1, so uv sync must attempt to build this unsupported older release from source and can fail even though compatible 3.5.x wheels exist. Upgrade greenlet while regenerating the lock for 3.15.

Useful? React with 👍 / 👎.