Google Mod_pagespeed is an active project. I am noticed that it is has a new update now.
Google mod_pagespeed v0.9.10.1-250
Project site has the latest update: There is still shown as 0.9.8.1-r215. Actually when I download and update, the latest binary is shown as above.
The upgrade is very simple, let me show it.
SSH to the server.
Download the new rpm
yum update mod-page*
Restart the httpd service