On Thu, Feb 18, 2016 at 9:02 AM, Yuri Astrakhan yastrakhan@wikimedia.org wrote:
It will be updated whenever the page containing the template is re-generated (e.g. the page is changed, or someone does a null-save). I heard that every page is forcefully regenerated if its older than 30 days,
Yes, and extension tags embedded in the page can reduce that, so if the graph has a way of knowing how long the data will be valid, it can tell that to the parser via ParserOutput::updateCacheExpiry. As a hacky manual workaround, you can put <div style="display:none">{{CURRENTHOUR}}</div> into the page to force hourly refresh.