YahnisElsts/wp-update-server — pull request #12 by jrfnl (2014-09-02 22:14:06+00:00)
Title: Make the metadata cache time a static so it can be overruled.

Especially useful in situations where you not only make the current version of a plugin available, but also older (versioned) versions. For the older versions, you can presume that the meta data will not change anymore and can choose to use a longer cache time.