Upgrade CIS by installer?

Can CIS be upgraded by the installer of next version CIS?
Just like Comodo Dragon?
Because some of the users just like me, download the upgade version by the CFPUpdater slowly because we are far away from USA’s server. It is more convenient for us to have this such a nice function in the installer.

I am not sure I understand you completely. Do you want to have the possibility to only download the components that need updating?

The v4 online installer will download the complete installer of v4 to a download folder of your choice. You wil be able to update from 3.14 to v4 somewhere after this week.

I mean that the download speed of the CFPUpdater is too slow. It will be more convenient for us to upgrade the CIS by installation.

Then you can use the online updater.