The list of changes:
Fixed: Secondary weapon selection is not saved after loading
Fixed: assassinations count is not saved after loading (ASSASSIN achievement)
Fixed: Poison dart is not working as it should
Fixed: Poison dart description is the same as Sleepy dart
Fixed: Way to the tunnel where Trex falls is blocked by invisible walls.
Fixed: Reptilian bosses can be freeze by darts
We are working to improve your experience - Reptiles: In Hunt Dev Team.