chore: bump version to 2.10.3

Author: kay-ou

.gitignore

@@ -75,4 +75,5 @@ GEMINI.md
 strategies/*
 data*/
 .claude
-*.ipynb
+*.ipynb
+.codex

CHANGELOG.md

@@ -5,6 +5,30 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.10.3] - 2026-05-09
+
+### 🐛 Fixed
+
+- **daily index resolution** — Add `_resolve_daily_index` fallback logic for day-level queries from minute timestamps (`exact -> normalize -> previous trading day`) to avoid lookup failures in `get_price`, `history`, and limit-status related flows.
+- **data query robustness** — When day index cannot be resolved for a symbol, skip gracefully instead of raising index/location errors in multi-symbol queries.
+
+### 🔧 Changed
+
+- **api typing** — Standardize multiple optional API parameters from `x: T = None` to `x: T | None = None` across PTrade-compatible interfaces for clearer signatures and static analysis friendliness.
+- **repo hygiene** — Ignore local Codex workspace metadata via `.codex` in `.gitignore`.
+
+### ✅ Tests
+
+- **broker profile compatibility** — Extend broker-compat test coverage for the updated daily index resolution behavior.
+
+### 📦 Upgrade
+
+```bash
+pip install --upgrade simtradelab==2.10.3
+```
+
+---
+
 ## [2.10.2] - 2026-04-14
 
 ### ✨ Added

README.de.md

@@ -7,7 +7,7 @@
 [![Python](https://img.shields.io/badge/Python-3.9+-blue.svg)](https://www.python.org/)
 [![License](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](LICENSE)
 [![License: Commercial](https://img.shields.io/badge/License-Commercial--Available-red)](licenses/LICENSE-COMMERCIAL.md)
-[![Version](https://img.shields.io/badge/Version-2.10.2-orange.svg)](#)
+[![Version](https://img.shields.io/badge/Version-2.10.3-orange.svg)](#)
 [![PyPI](https://img.shields.io/pypi/v/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 

README.md

@@ -7,7 +7,7 @@ English | [中文](README.zh-CN.md) | [Deutsch](README.de.md)
 [![Python](https://img.shields.io/badge/Python-3.9+-blue.svg)](https://www.python.org/)
 [![License](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](LICENSE)
 [![License: Commercial](https://img.shields.io/badge/License-Commercial--Available-red)](licenses/LICENSE-COMMERCIAL.md)
-[![Version](https://img.shields.io/badge/Version-2.10.2-orange.svg)](#)
+[![Version](https://img.shields.io/badge/Version-2.10.3-orange.svg)](#)
 [![PyPI](https://img.shields.io/pypi/v/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 

README.zh-CN.md

@@ -7,7 +7,7 @@
 [![Python](https://img.shields.io/badge/Python-3.9+-blue.svg)](https://www.python.org/)
 [![License](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](LICENSE)
 [![License: Commercial](https://img.shields.io/badge/License-Commercial--Available-red)](licenses/LICENSE-COMMERCIAL.md)
-[![Version](https://img.shields.io/badge/Version-2.10.2-orange.svg)](#)
+[![Version](https://img.shields.io/badge/Version-2.10.3-orange.svg)](#)
 [![PyPI](https://img.shields.io/pypi/v/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 [![PyPI - Downloads](https://img.shields.io/pypi/dm/simtradelab.svg)](https://pypi.org/project/simtradelab/)
 

pyproject.toml

@@ -1,7 +1,7 @@
 # Poetry configuration
 [tool.poetry]
 name = "simtradelab"
-version = "2.10.2"
+version = "2.10.3"
 description = "Lightweight quantitative backtesting framework with PTrade API simulation | 轻量级量化回测框架"
 authors = ["kay <kayou@duck.com>"]
 license = "AGPL-3.0-or-later"