British government sources indicated that a decision had already been made to allow Ukraine to use Storm Shadow cruise missiles on targets inside Russia, although it is not expected to be publicly announced on Friday when Keir Starmer meets Joe Biden in Washington DC. No official statements have been released yet.

https://www.theguardian.com/world/2024/sep/11/blinken-hints-us-will-lift-restrictions-on-ukraine-using-long-range-arms-in-russia