World generation different in 1.0 and 1.1

[TheVillageGuy]

We're running a contest on rwp, sharing a seed and coordinates, then build a colony in short. It seems that a seed generates a different planet in 1.0 than it does in 1.1. Can somebody verify this?

If this is the case I would also like to know how this works with backward compatibility, as I can still play all of my 1.0 colonies.

[Canute]

So long you don't use mod's you prolly can load your 1.0 colony into 1.1.
When you use mods, there is no garantee, you need to try it out.

But you can't use a 1.1 colony at 1.0 anymore.

[TheVillageGuy]

So is what I'm suggesting a fact?

[homemdosgalos]

I can confirm seed generation suffered a change from 1.0 to 1.1 maps. How that translates into built colonies, i cant really tell for sure