大家在查：斯•约翰•卢余额平衡一亿两千五百五萨沙阿伯内西 439年 Jerke ebwatch ·马里奥·贝 Rails2.0 吉顺

Rails1.2.x

DHH: We 've spent a lot of time making sure that migrating from Rails 1 . 2. x to 2. 0 wouldn't be too painful.