This files describes API changes in analytics sub system,
information provided here is intended especially for developers.

=== 3.5 ===

* There are two new methods for analysers, processes_user_data() and join_sample_user(). You
  need to overwrite them if your analyser uses user data. As a general statement, you should
  overwrite these new methods if your samples return 'user' data. These new methods are used
  for analytics' privacy API implementation.