# ¿How does updating the game affect my old saves or old worlds?

**URL:** <https://discourse.cataclysmdda.org/t/how-does-updating-the-game-affect-my-old-saves-or-old-worlds/19155>\
**Category:** The Bunker\
**Created:** [March 10, 2019, 2:23pm UTC](https://discourse.cataclysmdda.org/t/how-does-updating-the-game-affect-my-old-saves-or-old-worlds/19155 "2019-03-10T14:23:46Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Iliyan44](https://avatars.discourse-cdn.com/v4/letter/i/e274bd/32.png) [@Iliyan44](https://discourse.cataclysmdda.org/u/Iliyan44)\
**Post date:** [March 10, 2019, 2:23pm UTC](https://discourse.cataclysmdda.org/t/how-does-updating-the-game-affect-my-old-saves-or-old-worlds/19155/1 "2019-03-10T14:23:46Z")

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So every time i see in the update log a new monster update, a new building or a existing structure geting change or added, i get the question in my head ¿Do i need to make a new world so that the changes can take place or not?  
In short im strugling to understan the difrences betwean a old generated world and a new post update created one. ¿Dose the changes happen when i re introduce a charecter in the old world,this is like a never ending loop for me at this point.

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**Author:** ![QuietCoyote](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/quietcoyote/32/6451_2.png) [@QuietCoyote](https://discourse.cataclysmdda.org/u/QuietCoyote)\
**Post date:** [March 10, 2019, 2:26pm UTC](https://discourse.cataclysmdda.org/t/how-does-updating-the-game-affect-my-old-saves-or-old-worlds/19155/2 "2019-03-10T14:26:18Z")

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90% of the time, no, but there can be exceptions, Kevin mentioned that you shouldn’t need a new character for O.D. if your character is in experimental right now… And O.D. is just a re-cap of the past couple of years too, because burner zombies were added; but where quickly removed thereafter.

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**Author:** ![BushElito](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/bushelito/32/4767_2.png) [@BushElito](https://discourse.cataclysmdda.org/u/BushElito)\
**Post date:** [March 11, 2019, 2:51pm UTC](https://discourse.cataclysmdda.org/t/how-does-updating-the-game-affect-my-old-saves-or-old-worlds/19155/3 "2019-03-11T14:51:07Z")

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I do with my saves the same way I handle my Skyrim saves:

If I change a mod, and if it isn’t a graphics mod, delete the saves and start new.

Doesn’t matter if it is a big or small mod, I’m better off starting new and avoiding a headache with unexpected bugs and crashes.

Similarly, doesn’t matter if your save is just recent or from 0.A, even a small bugfix can break your game (because that bugfix might make breaking changes, like a function typo fix).