抓紧时间升级吧。这次升级有关安全问题，属于强制升级。
主要的更新在于密码找回功能中。
原先使用的密码找回功能模块，有重大安全漏洞，所以必须更新。
* Release Type: Security Release. This update fixes a serious potential vulnerability which has not yet been exploited in the wild.
* Mandatory? Yes, this is a mandatory security upgrade.
* Performance Implications: None.
* Plugins Affected: None. Your current plugins should continue to work as expected.
* Templates Affected: None.
* System Requirements: This release has no new or additional system requirements.
* Licensing considerations: None. MT 4.24 is a free update for users of any version of MT 4.x.
* Upgrade Fatigue: No further mandatory updates are planned for Movable Type 4.2.
更新之前，请注意做好备份，在我更新的几个Blog中，只有一个原先用于测试的Blog反而出现升级问题，其它正式在使用的，升级过程非常顺利。
安全问题被黑客利用，再应用于链接建立，已经走得很远了，Zac有过专门的话题，所以一旦有重大更新，我总是及时做好，害人之心不可有，防人之心不可无啊。