It was on August 21st, when I build it.mmm okay. I though you've made a build today (seeing some page last updated on 25 September)
Where do you see those page updated dates? Do you mean the "last updated" date at the bottom. It is currently the same date sitewide. I guess we cannot afford a stat call (to check the page's last modified date, so we use the sitewide last updated time).
I'm talkin about the one on the top (near the select to change the version of the documentation page)
didou