Mithril 0.1.21 发布，此版本是个维护版本，现已提供下载。更新内容如下：
新特性：
passing a promise to an m.prop now populates it with the resolved value upon resolution, and returns undefined otherwise
m.redraw can now be forced to called synchronously
Bug 修复：
fixed handling of + character in m.route.param #204
fixed corner case for undefined children in diff #206
fixed context.onunload for array items #200
fixed handling on comments in HTML converter tool
Mithril 是一个客户端的 JavaScript MVC 框架。可将应用分成数据层、UI层和控制层。Mithril 压缩后只有 3kb 左右。API 提供一个模板引擎，带 DOM diff 实现，支持路由和组合。
软件详情：http://lhorie.github.io/mithril/change-log.html
下载地址：https://github.com/lhorie/mithril.js/releases
来自:开源中国社区
