Apple doesn't monitor these forums. As always, for betas or releases, feel free to useReport a Bug for any fixes, samples, doc errors/additions, feature requests or enhancements you'd like to see as well. Include detailed information of the issue, including the system and developer tools version information, and any relevant crash logs or console messages. Each top level issue deserves a unique report. Duplicates - understand that Apple uses "amount of duplication" in bug reports as a way to gauge the 'severity' of an issue.
General notes about bugs: devs should not typically expect followup unless (a) the engineer working on the issue needs more information and reaches out or (b) the/your issue has been fixed and the bug is sent back to you to please verify. Don't worry about category too much as the reports are checked when received and routed to the proper Engineering section involved. Know that devs can only see their own bugs.
For additional info, see
Bug Reporting Best Practices &Bug Reports: What Devs Need To Know.
