The US secretly provided Ukraine with long-range ATACMS missiles in recent days, according to multiple US officials, providing Ukraine with a significant new capability that could allow its forces to hit new Russian targets that were previously out of reach.
A very important bit, reported by WSJ:
Source: https://www.wsj.com/world/europe/ukraine-fires-atacms-missile-at-russian-forces-for-the-first-time-3bebcdb1
Pravda is also quoting WSJ in their article and mentioning the 160 km range version. https://www.pravda.com.ua/eng/news/2023/10/17/7424525/