New Features:

Advanced Font System: full system font discovery, monospace detection, per-session and global terminal/UI font sizing with shortcuts.
Multiple Layout Modes: tabs, grid, and free-form draggable panels with z-index and maximize.
Foldered Connection Management: create, rename, delete, group, collapse/expand; search enhancements.
Local Shell & Serial Sessions: run local shell (macOS) and serial port connections alongside SSH.
ZMODEM File Transfer: bidirectional sz/rz with progress panel, auto-detection, interruption handling.
Personal Data Import / Export: encrypted backup & restore of connections and settings.
Quick Button Toolbar & IME Helper: configurable command buttons and improved CJK input handling.
Theme & Appearance: terminal theme manager, selection inversion toggle, scrollbar styling, dynamic UI scaling.
Keyboard Shortcuts: global session switching, reconnection, font size (per-session & all), clear screen, word navigation, quit confirmation modes.
Session Status Indicators: real-time connection state visualization.
Improvements:

Accurate terminal sizing & Vim compatibility (multi-step pty resize after connect and font change).
Reliable SSH key handling (passphrase-aware, fallback auth).
Scrollback management, batched output rendering, debounced UI rebuilds.
Better focus handling after connect/reconnect.
Enhanced error pages with dismiss/retry.
Optimized font loading (lazy + caching).
Version info automation (build metadata from git tags).
Fixes:

Font size initialization & step inconsistency.
Terminal dimension reset to 80x24 on inactive sessions.
Windows key input handling and CJK encoding issues.
ZMODEM edge cases (spurious control sequences, cleanup states).
Folder drag/drop stability & single-click activation.
Selection persistence after paste; auto-copy behaviors.
Reconnection prompts and stale session listeners.
Numerous UI alignment, padding, and icon consistency issues.
Performance:

Output batching (micro-burst merge).
Debounced resize and layout recalculations.
Reduced redundant listeners & memory leak prevention.
Lazy theme/font and serial resource initialization.
Security & Reliability:

Multi-auth fallback strategy (password + key).
Connection health monitoring & graceful loss handling.
Safer SSH environment setup sequencing.

新增功能：

高级字体系统：系统字体扫描、等宽字体识别、终端与界面字体全局/会话独立调节与快捷键支持。
多布局模式：标签、网格、自由拖拽窗口，含层级与最大化。
分组连接管理：支持文件夹创建/重命名/删除/折叠/搜索。
本地 Shell 与串口支持：与 SSH 会话并行管理。
ZMODEM 文件传输：支持 sz / rz 双向传输、进度面板与中断恢复。
数据导入/导出：加密备份连接与设置。
快速按钮工具栏与输入法辅助：自定义命令、一体化输入优化（含中文输入支持）。
主题与外观：终端主题管理、反色选区、滚动条样式、动态 UI 缩放。
全局快捷键：切换会话、重连、字体缩放（单会话/全局）、清屏、单词跳转、退出确认模式。
会话状态指示：实时显示连接状态。
改进：

终端尺寸与 Vim 兼容（多阶段 pty 调整）。
更稳健的 SSH 密钥与密码回退机制。
输出滚动与性能优化（批量写入 + 防抖）。
聚焦与重连体验优化。
错误页面可关闭与重试。
懒加载字体与缓存。
自动版本信息（基于 git 标签）。
修复：

字体初始步进异常。
非活动会话尺寸回退 80x24。
Windows 按键与中日韩字符输入。
ZMODEM 边界状态与清理。
分组拖拽、单击激活问题。
粘贴后选区消失与自动复制逻辑。
重连提示与残留监听。
多处 UI 间距与图标一致性。
性能：

输出批处理与重绘防抖。
尺寸/布局计算减负。
监听清理防内存泄漏。
延迟加载主题与串口资源。
稳定与安全：

多认证回退。
连接健康监控与优雅断开处理。
更安全的环境变量设置顺序。