It is confusing in 7.7.1 how the user should create UDFs.

The process is the same in 7.7.1, but you get a deprecation warning when you create a function model. There is still work to be done with the MEDs for UDF creation - I think that is planned for 8.0.

In the meantime we should make it clear in the docs, that the process is the same re UDFs until 8.0 - even though you get a deprecation warning saying not to use the FunctionModel.