No PPAPI 31.0.0.153 Available

The "Check Now" button when clicked for the PPAPI plug-in shows there's a new update from 31.0.0.122 but after installing it it still shows 31.0.0.122 in my System Preferences instead of updating it to 31.0.0.153. I believe the PPAPI 31.0.0.153 update file was not put in the download area.

The NPAOI Plug-in version 31.0.0.122 updated to 31.0.0.153 just fine