文档主要介绍了《Pro Git 2nd Edition》的内容及更新信息。自第一版以来，Git在社区支持、图形界面、IDE集成和企业使用方面取得了显著进展，GitHub也已成为Open Source社区的重要平台。书中涵盖了Git的基础命令、分支模型、高级功能、GitHub使用、服务器配置等内容，并深入探讨了Git的内部工作机制和版本控制策略，适合开发者和团队进行版本控制和协作。

TABLE OF CONTENTS License Preface by Scott Chacon Preface by Ben Straub Dedications Contributors Introduction Getting Started About Version Control Local Version Control Systems Centralized Version Control Systems Distributed Version Control Systems A Short History of Git What is Git? Snapshots, Not Differences Nearly Every Operation Is Local Git Has Integrity Git Generally Only Adds Data The Three States The Command Line Installing Git Installing on Linux Installing on macOS Installi