Normally, player speeds resolving above 1,800 cm/s are silently clamped to 1,800. In 42.20, player speeds are allowed to resolve above this value to a maximum of 11,000 cm/s if either Sprint Maximum Speed or Tactical Sprint Speed Multiplier is set to a non-default value in the Player Movement Device.
For example, a device with 2,000 sprint speed with a 5x multiplier resolves to 10,000 cm/s, which was capped at 1,800 before and now applies in full. Review your values if you were relying on the old behavior.
We will monitor feedback around this, and determine whether we should be unclamping the maximum speed when other values are modified as well.