For Tiki support, please use the forums.
If you are migrating to Tiki8 from Tiki versions earlier than Tiki7, you are encouraged to read first the pages describing the changes introduced in earlier versions of Tiki, such as:
as well as the page linking to the resources related with Upgrades
If this is your first installation ever of Tiki, welcome to Tiki Community! You'll find details about the installation here: