The ICC said all changes "will be applicable across all (three) formats". "The changes are being made as a result of changes to the laws of cricket that have been announced by the MCC," ICC general manager Geoff Allardyce said in a statement. "If a team refers an umpire's decision to the TV umpire and the on-field decision remains unchanged because the DRS shows "umpire's call", the team will not lose that review. But teams will now have only two unsuccessful reviews for the entire innings of a Test. Previously, the unsuccessful reviews were replenished after the first 80 overs.

Source: Times of India September 26, 2017 21:33 UTC