It seems that another patch just came up just a day after patch 1.33 for Horizon Zero Dawn. The previous patch caused some crash issues which was fixed in this latest patch.
In the previous patch, a new feature was added which lets players create a manual save from a previous game before starting a new one.
In Patch 1.34, the update size is about 309.6MB; the latest patch also fixed some few bugs that occured in the New Game + and Ultra Hard difficulty.
Here is the full change log of the latest patch updates:
Implemented an option to allow making a manual save from a previous Game when starting a New Game to avoid losing progress.
Fixed an issue where for some players Tearblast Arrows incorrectly deal extra Tear damage on Ultra Hard.
Fixed an issue where some players were able to reroll Special Modification Boxes by saving and reloading.
Fixed an issue in ‘The Womb of the Mountain’ when playing on Story difficulty where some players were able to kill the Corruptor outside of the gate, blocking progression because the player is not able to interact with it to continue the quest.
Horizon Zero Dawn The Frozen Wilds DLC is expected to launch this November.