13.2b2 introduces two important Siri privacy features. First, you can opt in and out of “Improve Siri & Dictation” in Settings → Privacy → Analytics & Improvements. Second, you can delete your Siri and dictation history in Settings → Siri & Search. In a briefing with Apple, I was told that even if you opt in to “Improve Siri & Dictation”, no one at Apple will ever review a Siri interaction until 24 hours have passed. So if you ever do say anything to Siri you don’t want reviewed, you have a full day to delete your history. Also, I was told that Siri interactions will henceforth only be reviewed by Apple employees — no more contractors. All told, these changes are a solid response to the Siri “grading” controversy.