The new version for Dynamics 365 version 9.0.2.3034 is a worse RTM version.
There are many issues from technical part of view. Short overview:
On servers in my test environment, some prerequisites are missing. The import or create of organization failed. Migration from older version is not possible, you got problems with different things. Starting with enabled full-text catalog on organization, followed by error with “The AttributeLookupValue (Id=xxx) entity or component has attempted to transition from an invalid state…” and if you solve this by workaround you have the next issue with applying database updates…