Returnal update 1.4.0 was detailed by Housemarque. You can find out the complete patch notes of this update from here.
After a long time, Housemarque is releasing a new patch for Returnal. This update is aimed at those who had trouble achieving their Platinum trophy due to issues. This allows the support of replaying Act 1 and 2 trophies, and for trophies that couldn’t be replayed. If you were aiming to complete the game 100% and get all the trophies, you should update to the latest version.