migration guide

Author: csviri

docs/documentation/v4-3-migration.md

@@ -0,0 +1,36 @@
+---
+title: Migrating from v4.2 to v4.3
+description: Migrating from v4.2 to v4.3
+layout: docs
+permalink: /docs/v4-3-migration
+---
+
+# Migrating from v4.2 to v4.3
+
+## Condition API Change
+
+In Workflows the target of the condition was the managed resource itself, not a dependent resource. This changed, from
+not the API contains the dependent resource.
+
+New API:
+
+```java
+public interface Condition<R, P extends HasMetadata> {
+    
+  boolean isMet(DependentResource<R, P> dependentResource, P primary, Context<P> context);
+  
+}
+```
+
+Former API:
+
+```java
+public interface Condition<R, P extends HasMetadata> {
+
+  boolean isMet(P primary, R secondary, Context<P> context);
+  
+}
+```
+
+Migration is trivial. Since the secondary resource can be accessed from the dependent resource. So to access the secondary
+resource just use `dependentResource.getSecondaryResource(primary,context)`.