Earlier this year R&A and USGA announced that they intend to publish so-called “Clarifications” four times a year: In April, July, October and January. These Clarifications will clarify the Rules of Golf.
But in October 2019 there was no new Clarifications, though:
No new clarifications for October 2019
(from USGA’s website).
Next time there will (maybe) be new will be in January:
Updated October 1, 2019
Clarifications will normally be updated on a quarterly basis in January, April, July and October. The next quarterly update will be in early January 2020.
You can find the Clarifications on this link (USGA).