Just a quick reminder to self, since simply updating mod_pagespeed doesn’t seem to be able by just running yum update. If you have installed mod_pagespeed building from the source, as I have, you will probably run into the following issue:
"httpd >= 2.2 is needed by mod-pagespeed"
Here is a quick and dirty solution that has worked for me.
1) Remove the old version with this command:
yum remove mod-pagespeed-stable.x86_64
2) Follow these steps to update mod_pagespeed to the latest version:
cd ~ yum install at wget https://dl-ssl.google.com/dl/linux/direct/mod-pagespeed-stable_current_x86_64.rpm rpm -i --nodeps mod-pagespeed-stable_current_x86_64.rpm