v0.0.9

refactor: release v0.0.9 — EventLoop abstraction, BatchIterator, cache-valid optimization, and race fix

• add cross-platform EventLoop I/O framework (epoll / kqueue / IOCP) replacing select()
• add BatchIterator for lazy CIDR expansion (1024 IPs per batch), reducing memory usage
• add cache_valid flag to CandidatePool, skipping redundant health checks on known-good IPs
• add recv_timeout() with configurable timeout, replace blocking recv in pipe_worker and connection_thread
• use Linux splice() for zero-copy forwarding in pipe_worker; unify all platforms on recv_timeout(300s)
• fix race between carrier_rescan_and_select_ip free(items) and carrier_choose_ip_for_connection items traversal by protecting with candidates.mu
• remove global candidate state (g_candidates, g_current_ip, etc.) in favor of per-pool management
• add version string (CFNAT_VERSION "0.0.9") and -V / -version flag

refactor: 发布 v0.0.9 — 引入 EventLoop 抽象层、BatchIterator、缓存有效优化与竞态修复

• 新增跨平台 EventLoop 事件驱动 I/O 框架（epoll / kqueue / IOCP），替代 select() 模型
• 新增 BatchIterator 惰性 CIDR 批量迭代（每批 1024 个 IP），降低内存占用
• CandidatePool 新增 cache_valid 标志，健康 IP 跳过冗余检测，直接复用
• 新增 recv_timeout() 可配置超时接收，替换 pipe_worker 与 connection_thread 中的阻塞 recv
• pipe_worker Linux 平台使用 splice() 零拷贝转发；全平台统一 recv_timeout(300s)
• 修复 carrier_rescan_and_select_ip 中 free(items) 与 carrier_choose_ip_for_connection 遍历 items 的竞态，使用 candidates.mu 互斥锁保护
• 移除全局候选状态（g_candidates、g_current_ip 等），状态归入 CandidatePool 管理
• 新增版本号（CFNAT_VERSION "0.0.9"）及 -V / -version 命令行参数

v0.0.8

fix: v0.0.8 align health check timeout with user-configured delay_ms

• replace hardcoded 2000ms timeout in health_check_ip and carrier_health_check_ip with g_cfg.delay_ms
• fix mismatch where a low -delay (e.g. 500ms) kept an IP alive in health checks while client connections timed out against the same IP
• apply the fix to all 8 dial + probe calls across Baidu and Carrier health check paths

fix: v0.0.8 健康检查超时改为与用户设置的 -delay 一致

• 将 health_check_ip 和 carrier_health_check_ip 中硬编码的 2000ms 超时替换为 g_cfg.delay_ms
• 修复当 -delay 设为较低值（如 500ms）时，健康检查用 2000ms 判定 IP 可用，但客户端连接用 500ms 超时而连不上的问题
• 同步修复百度直连模式和运营商模式共 8 处 dial + probe 调用

v0.0.7

feat: release v0.0.7 with dual listening mode (direct + baidu proxy)

• support -direct-listen and -baidu-listen parameters
• add mixed mode when direct-listen and baidu-listen are the same address
• refactor carrier listening logic and health check for better clarity and stability
• simplify Config structure and remove legacy multi-carrier resolver code
• improve connection selection and fallback between direct and baidu proxy

feat: 发布 v0.0.7，支持双监听模式（直连 + 百度前置代理）

• 支持 -direct-listen 和 -baidu-listen 参数
• 新增两个监听地址相同时的 mixed 混合模式
• 重构运营商监听逻辑与健康检查，提升代码清晰度和稳定性
• 精简 Config 结构体，移除遗留的多运营商解析代码
• 优化直连与百度前置代理的连接选择和回退机制

v0.0.6

feat: release v0.0.6 with carrier listen priority over Baidu proxy config

• force -baidu-proxy=true automatically when -carrier-listens is configured
• make carrier split-port mode take priority over explicit -baidu-proxy=false
• add startup notice when carrier listen mode enables Baidu proxy automatically
• simplify carrier listen examples by removing the need to set -baidu-proxy=true
• update README to document -carrier-listens priority and automatic Baidu proxy behavior

feat: 发布 v0.0.6，让运营商监听优先于百度代理配置

• 配置 -carrier-listens 时自动强制启用 -baidu-proxy=true
• 让运营商分端口模式优先于显式设置的 -baidu-proxy=false
• 添加启动提示，说明运营商监听模式会自动启用百度前置代理
• 简化运营商分池示例，不再需要手动设置 -baidu-proxy=true
• 更新 README，说明 -carrier-listens 的优先级和自动启用百度前置代理行为

v0.0.5

feat: release v0.0.5 with unified C source and simplified cache startup

• merge Linux, macOS, and Windows implementations into cfnat.c
• replace split source files with platform-specific conditional compilation
• keep Windows support for Winsock2, WinINet, DNS API, and Unicode console output
• keep Linux and macOS support for POSIX sockets, pthreads, and built-in DNS TXT lookup
• update GitHub Actions to build all platforms from cfnat.c
• update release packaging to include the unified source file
• refresh README with single-source build commands and platform notes

feat: 发布 v0.0.5，合并 C 源码并简化缓存启动逻辑

• 将 Linux、macOS、Windows 三个平台实现合并到 cfnat.c
• 使用平台条件编译替代分裂源码维护
• 保留 Windows 的 Winsock2、WinINet、DNS API 和 Unicode 控制台输出支持
• 保留 Linux 与 macOS 的 POSIX socket、pthread 和内置 DNS TXT 查询支持
• 更新 GitHub Actions，所有平台统一从 cfnat.c 构建
• 更新 release 打包，只附带统一后的源码文件
• 更新 README，补充单源码构建命令和平台说明

v0.0.4

feat: release v0.0.4 with fast-start cache and scan optimization

• add startup cache system for previously verified candidate IPs
• enable immediate startup from cached healthy IPs before full scan
• add background refresh scanning and automatic cache rewrite
• separate cache files for IPv4 / IPv6 and Baidu proxy modes
• improve scan progress visibility and runtime diagnostics

feat: 发布 v0.0.4，加入快速启动缓存与扫描优化

• 添加历史有效 IP 启动缓存系统
• 启动时优先使用缓存中的健康 IP，避免每次全量扫描
• 添加后台刷新扫描与自动缓存回写
• 为 IPv4 / IPv6 与百度代理模式分别使用独立缓存文件
• 改进扫描进度显示与运行统计日志

v0.0.3

feat: release v0.0.3 C build with proxy routing and platform fixes

• add Baidu CONNECT proxy support with carrier-specific listen pools
• simplify candidate selection to always use the lowest score IP and fail over to the next best candidate
• add scan progress, scan statistics, and UNK fallback for TCP-reachable candidates without readable CF-RAY
• fix Windows 7 console output by writing Unicode logs through WriteConsoleW
• fix Windows data downloads by replacing external curl / wget calls with WinINet
• update release builds for Linux glibc dynamic and supported musl static targets
• normalize runtime data files to ips-v4.txt, ips-v6.txt, and locations.json
• refresh README for v0.0.3 usage, build matrix, troubleshooting, and platform notes

feat: 发布 v0.0.3 C 版，加入代理分流并修复多平台兼容问题

• 添加百度 CONNECT 前置代理和运营商独立监听池
• 简化候选选择逻辑，始终使用 score 最低 IP，并在失败后切换到下一个最优候选
• 添加扫描进度、扫描统计，以及 TCP 可达但无法读取 CF-RAY 时的 UNK 候选回退
• 通过 WriteConsoleW 输出 Unicode 日志，修复 Windows 7 控制台中文乱码
• 使用 WinINet 替代外部 curl / wget，修复 Windows 数据文件下载问题
• 更新发布构建，提供 Linux glibc 动态版和受支持的 musl 静态版
• 统一运行数据文件为 ips-v4.txt、ips-v6.txt 和 locations.json
• 更新 README，补充 v0.0.3 用法、构建矩阵、排错和平台说明

v0.0.2

feat: unify select-based routing model across C platforms

• replace public mode flags with -select=best|first|rotate|random across Linux, macOS, and Windows
• implement score-based candidate ranking for best using latency and loss rate instead of exposing internal sort modes
• add IPv6 listen address parsing and socket binding support, including bracketed forms like [::]:port
• consolidate runtime logging into -log=silent|error|warn|info|debug and improve interruptible wait behavior for cleaner shutdown
• optimize long-running resource cleanup and keep candidate / location memory release paths aligned

feat: 统一 C 版跨平台的 select 路由模型

• 在 Linux、macOS 和 Windows 中统一改为对外使用 -select=best|first|rotate|random
• 将 best 改为基于延迟与丢包率的 score-based 综合评分，不再暴露内部排序模式
• 增加 IPv6 监听地址解析与绑定支持，包括 [::]:port 这类方括号形式
• 将运行时日志统一收口为 -log=silent|error|warn|info|debug，并优化可中断等待逻辑以改善退出行为
• 优化常驻运行时的资源回收，统一候选池与 location 数据释放路径

v0.0.1

A lightweight Cloudflare IP scanner and TCP forwarding tool.