chore: bump version to 2.8.0

Author: kay-ou

CHANGELOG.md

@@ -1,9 +1,33 @@
-# 更新日志
+# Changelog
 
-本项目的所有重要变更都将记录在此文件中。
+All notable changes to this project will be documented in this file.
 
-格式基于 [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)，
-项目遵循 [语义化版本](https://semver.org/spec/v2.0.0.html) 规范。
+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).
+
+## [2.8.0] - 2026-03-15
+
+### ✨ Added
+
+- **Multi-market support** — New `market` config (`CN`/`US`); `MarketProfile` auto-adapts trading rules (T+1, price limits, lot size, commissions, default benchmark)
+- **i18n** — Backtest output in zh/en/de via `locale` config
+- **Trade log** — `StatsCollector` + `PtradeAPI` integration, records every trade
+- **Optimization mode** — `optimization_mode` skips strategy validation/data analysis/logging; shares date-index cache across trials
+
+### 🔧 Improved
+
+- **Optimizer refactor** — `optimizer_framework.py` slimmed by ~400 lines
+- **Log format** — Backtest date prefix in log lines
+- **Benchmark default** — `benchmark_code` defaults to empty string, auto-selects market default
+- **Data loading** — `storage.py` ensures date columns are datetime, compatible with string/int parquet formats
+
+### 📦 Upgrade
+
+```bash
+pip install --upgrade simtradelab==2.8.0
+```
+
+---
 
 ## [2.7.0] - 2026-03-10
 

README.md

@@ -7,7 +7,7 @@ English | [中文](README.zh-CN.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-2.7.0-orange.svg)](#)
+[![Version](https://img.shields.io/badge/Version-2.8.0-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/)
 
@@ -34,7 +34,8 @@ English | [中文](README.zh-CN.md)
 - 🧠 **Smart data loading** — AST analysis of strategy code, loads only required data
 - 🔧 **Lifecycle control** — 7 lifecycle phases, strict simulation of PTrade's API restrictions
 - 📊 **Full stats reporting** — returns, risk metrics (Sharpe/Sortino/Calmar), trade details, FIFO dividend tax, CSV export
-- 🔌 **T+0 / T+1 modes** — configurable trading restrictions for A-shares, ETFs, and US stocks
+- 🔌 **Multi-market** — Built-in CN (A-shares) and US market profiles with automatic trading rule adaptation
+- 🌐 **i18n** — Backtest output in Chinese, English, or German
 
 ---
 
@@ -67,7 +68,7 @@ pip install simtradelab[indicators]
 pip install simtradelab[optimizer]
 ```
 
-**Data:** Use [SimTradeData](https://github.com/kay-ou/SimTradeData) to download China A-share historical data.
+**Data:** Use [SimTradeData](https://github.com/kay-ou/SimTradeData) to download China A-share and US stock historical data.
 
 **Run a backtest:**
 

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-2.7.0-orange.svg)](#)
+[![Version](https://img.shields.io/badge/Version-2.8.0-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/)
 
@@ -34,7 +34,8 @@
 - 🧠 **智能数据加载** — AST静态分析策略代码，按需加载数据，节省内存
 - 🔧 **生命周期控制** — 7个生命周期阶段，严格模拟PTrade的API调用限制
 - 📊 **完整统计报告** — 收益、风险（夏普/索提诺/卡玛）、交易明细、FIFO分红税、CSV导出
-- 🔌 **T+0 / T+1 模式** — 可配置A股、ETF、美股交易限制
+- 🔌 **多市场支持** — 内置 A 股 / 美股市场配置，自动适配交易规则（T+1、涨跌停、手数、手续费）
+- 🌐 **国际化** — 回测输出支持中文/英文/德文
 
 ---
 
@@ -67,7 +68,7 @@ pip install simtradelab[indicators]
 pip install simtradelab[optimizer]
 ```
 
-**数据获取：** 使用 [SimTradeData](https://github.com/kay-ou/SimTradeData) 获取A股历史数据。
+**数据获取：** 使用 [SimTradeData](https://github.com/kay-ou/SimTradeData) 获取A股和美股历史数据。
 
 **运行回测：**
 

pyproject.toml

@@ -1,7 +1,7 @@
 # Poetry configuration
 [tool.poetry]
 name = "simtradelab"
-version = "2.7.0"
+version = "2.8.0"
 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"