probably the dummy question to ask but I was wondering if the modification from the older previously versions of IP.Board will still work for 4.0?

there are allot that I want. If so then how to go about it when installation. I have done one and it didn't work as it was for 3.x

Nope. No add-ons for 3.4 will work on 4.0.

Hello,

In general no. IPS4 is a complete full rewrite with a new framework.

Having said that there are now quite a lot of 4x versions of popular 3x addons and themes (skins) available so it is likely that some of the items you had for your 3x board may already be built into 4x or available in the Marketplace

If there is anything specific that does not appear to be available the first thing to do would be to ask in its support topic to see if the author plans either an update or a new version.

no nothing form the 3 series will work on 4 .

No - they will need to be redeveloped for 4.0

Unless it has been upgraded to work with the 4.0 infrastructure modifications from 3.0 will not work with 4.0. The coding community, however, has been working to upgrade their mods so there may be a new release for the mods you are most concerned with. You can look here:

http://community.invisionpower.com/files/

No.

It will take some time for the developers to catch up and get familiar with a new system.

4 is a completely new platform.

The drawback is those 3 mods wont' work. The advantage is a new system with a lot more benefits for devs and end users. 

Gettin there...

That answer that question then. Thanks guys. Hopefully to see more files updated to 4.0. One good thing about 4.0 that it's easier to install modification then other versions. Most modification I installed are xml and tar and don't need to leave the cp panel