Added UpgradeGuide

README.md

@@ -25,6 +25,10 @@ pip install graphene[django]
 pip install graphene[sqlalchemy]
 ```
 
+## 1.0 Upgrade Guide
+
+Please read [UPGRADE-v1.0.md](/UPGRADE-v1.0.md) to learn how to upgrade.
+
 
 ## Examples
 

UPGRADE-v1.0.md

@@ -0,0 +1,66 @@
+# v1.0 Upgrade Guide
+
+Big changes from v0.10.x to 1.0. While on the surface a lot of this just looks like shuffling around API, the entire codebase has been rewritten to handle some really great use cases and improved performance.
+
+
+## Backwards Compatibility and Deprecation Warnings
+
+This has been a community project from the start, we need your help making the upgrade as smooth as possible for everybody!
+We have done our best to provide backwards compatibility with deprecated APIs.
+
+
+## Interfaces
+
+For implementing an Interface in a ObjectType, you have to add also `ObjectType`.
+
+Like:
+
+```python
+from graphene import Interface, ObjectType, String
+
+class Character(Interface):
+    name = String()
+
+class Human(Character): # Old way, not working anymore
+    pass
+
+class Droid(Character, ObjectType): # New way, you have to specify the ObjectType
+    pass
+```
+
+## Mutations
+
+Mutation fields have changed the way of usage, before if you have the mutation `MyMutation` you
+only have to reference with `graphene.Field(MyMutation)` now it's simply `MyMutation.Field()`
+
+Example:
+
+```python
+from graphene import ObjectType, Mutation, String
+
+class ReverseString(Mutation):
+    class Input:
+        input = String()
+
+    reversed = String()
+
+
+class Query(ObjectType):
+    reverse_string = graphene.Field(ReverseString) # Old way, not working anymore
+    reverse_string = ReverseString.Field()
+```
+
+## Nodes
+
+Apart of implementing as showed in the previous section, for use the node field you have to
+specify the node Type.
+
+Example:
+
+```python
+from graphene import ObjectType, relay
+
+class Query(ObjectType):
+    node = relay.NodeField() # Old way, NodeField no longer exists
+    node = relay.Node.Field() # New way
+```