I can attest to this.
I don't know the difference between "openvpn-install-2.3.1-
I005-x86_64.exe" & "openvpn-install-2.3.1-
I001-x86_64.exe" for this is not described on the change logs. Perhaps just a typo
This did confused me but after doing further research I ran into the following thread
https://forums.openvpn.net/topic12610.html
where a forum team member said on Apr 06, 2013 that they will take care of it.