The Bureau of Engraving and Printing fell behind on releasing monthly reports back in February. Then in early October, they released reports for February 2019 to May 2019. And now this month (a few days ago), they released numbers for June 2019 to October 2019. That mean's we're finally back up-to-date.
The biggest news is that a new series has been printed: series 2017A. So far it has been printed for the $2, $5, $10, $20 and $100 denominations. Normally the series is introduced when the Treasurer of the United States or the Secretary of the Treasury position changes. Breaking with that pattern, the series 2017A bears the same signatures as series 2017. It has been reported that the reason is a "minor change in the production process." What the specific change is - we don't know yet. Series 2017A uses "P" as the prefix letter for denominations $5 or above. Similar to how "Z" isn't used for blocked letters because it looks like two, the "O" prefix was skipped because it looks like zero.
You can see the full reports here if you're interested.