The new generation of Terracotta Server and platform has very significant changes from Terracotta 4.x with respect to handling of cluster topology, data storage formats, and various other aspects.

Because of this, there is no possibility of direct migration of data and configuration for a Terracotta 4.x server installation to a 10.x server.

If you intend to reuse the same host systems in 10.x that you were using in 4.x, the Terracotta Server configuration file(s) from an existing 4.x installation may be a useful reference when you create your new 10.x configuration file(s). The 4.x configuration file(s) contain the host names, addresses, etc. that you have been using so far.