刚刚才看到MovableType 4.2的rc3都已经发布了，马上就在MT4测试平台上做了更新。
提示升级，系统对数据库做了升级。
* Upgrading database from version 4.0063.接着登入系统，做一个完整的重建动作，重建时出现下面的错误信息
* Upgrading table for MT::Entry::Meta records...
* Upgrading table for MT::Asset::Meta records...
* Upgrading table for MT::Author::Meta records...
* Upgrading table for MT::TBPing::Meta records...
* Upgrading table for MT::Category::Meta records...
* Upgrading table for MT::Template::Meta records...
* Upgrading table for MT::Blog::Meta records...
* Upgrading table for MT::Comment::Meta records...
* Recover permissions of system administrators... (100%)
* Database has been upgraded to version 4.0066.
An error occurred publishing entry 'Welcome Movable Type 4.2 release candidate': Publish error in template 'Entry': Error in <mtInclude> tag: error in module Comments: Publish error in template 'Comments': Error in <mtIfCommentsActive> tag: Error in <mtComments> tag: Error in <mtIfCommentsAccepted> tag: Unknown tag found: CommentReplyLink
估计是模板系统也有更新，所以把系统的模板refreshing，恢复到系统出厂设置，再次重建成功。Publish time: 28 seconds. 很快捷。
就是不知道何时正式版才会发布。
测试版下载地址在这里。