[6.1 升级给上级人数](6.1%E5%8D%87%E7%BA%A7%E7%BB%99%E4%B8%8A%E7%BA%A7%E4%BA%BA%E6%95%B0.md) [6.2 升级脱离](6.2%E5%8D%87%E7%BA%A7%E8%84%B1%E7%A6%BB.md) [6.3 升级回归](6.3%E5%8D%87%E7%BA%A7%E5%9B%9E%E5%BD%92.md) [6.4 脱离后作为原/新上级升级条件](6.4%E8%84%B1%E7%A6%BB%E5%90%8E%E4%BD%9C%E4%B8%BA%E5%8E%9F-%E6%96%B0%E4%B8%8A%E7%BA%A7%E5%8D%87%E7%BA%A7%E6%9D%A1%E4%BB%B6.md)