The changes affected the hardware and software, the newspaper reports.

Thus, the United States ruled out the possibility of using MLRS to launch ATACMS ballistic missiles, which Washington did not supply to Kyiv.

The Pentagon, the White House and the Armed Forces did not comment on this issue, the article says.

In September, it was reported that the Ukrainian authorities were requesting additional weapons from the United States, including long-range missile systems.

As specified, the requirements of Ukraine include, among other things, tactical ballistic missiles ATACMS with a range of about 300 km. 

CNN has also previously reported that the US is unlikely to supply Kyiv with long-range systems.

According to John Kirby, strategic communications coordinator at the White House National Security Council, the United States explains the refusal to supply Ukraine with long-range weapons by unwillingness to further escalate the Ukrainian crisis.