What probably matters to youSection of the release
What
This is version 2.1.242, built from commit 2482ce9083708842d832441fde1721626f306157. The CLI gained a first-argument mode --eval-mock-server taking two positional arguments, which prints the error and exits 1 on failure, and the build constants gained a URL for the bundled hooks worker script.
Evidence
--eval-mock-server:
Strings lifted out of the shipped bundle, so the claim above can be checked against them.