前段时间SuperSU发布了一个新的稳定版v2.80，这是一个久违的稳定版更新，但是很多提督们反映，更新后出现弹窗提示“SU文件被占用”，导致Root权限丢失的情况。有鉴于此，昨天SuperSU官方发布了一个新版本，来修复这个问题，这就是v2,81。
按照SuperSU官方的说法，如果你已经因为更新SuperSU v2.80而出现了“SU文件被占用”，请更新到2.81版本。
如果更新后依旧显示这个提示，那么，请重新ROOT你的设备。

公告原文：
链接：https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703
*** Urgent Update Notice ***
We are deeply sorry about the installation errors and failures happened in v2.80.
The new update v2.81 has rolled out on XDA and Play Store to fix the problem occured in v2.80.
Chainfire has also released a quick fix on XDA, it's at #1445 post (we will post it here soon)
We have noticed the multiple reports from users on both XDA and Play Store regarding update failure and loss of root. As of now, we have rolled out 2.81 to resolve this issue. If it still persist, please reroot your phone with v2.79.
Again, we apologize for all the trouble and inconvenience caused regarding our 2.80 update. There is hardly any excuse on our side and we should have done a better job. In the coming days, Chainfire and us will review this issue again and provide a note on what went wrong and how we fixed it. In future, we will set up a mechanism to make sure cases like this won't happen again.
P.S. Upon reading ALL the comments posted on this thread, Play Store, Facebook and various sites, we understand the frustrations among users and we are swallowing the heated words. But even at moment like this, we are truly grateful for the community members who shared the details of the error (which speed up our detection process) and those who defended us.
We owe you guys a big thank you.

下面是公布的下载地址。。。

官方发布帖地址(XDA)：https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703

适配TWRP/FlashFire的卡刷包的下载直链：https://s3-us-west-2.amazonaws.com/supersu/download/zip/SuperSU-v2.81_201705252021.zip

仅在以上链接失效时才应使用的国内链接地址：https://pan.baidu.com/s/1mhZTvZU

以下为跟随此帖（在此贴吧）同时公布的附件：

称呼名词修改：
1.SuperSU的开发方称呼由Chainfire修改为SuperSU官方。

应用所需权限修改：
1.自SuperSU v2.81开始，其所需权限变更如下：
原：
现：

---------以上desu~~--------

都没好好放小姐姐图片，差评

http://www.supersu.com/
为什么我在这个网站上下载不了

难得第一次更新，结果来这么一手，现在又得重新ROOT，这玩意真靠不住