Update release_notes.md

Author: newtork

docs/release_notes.md

@@ -10,6 +10,14 @@
 
 - The old OpenAI client (v1.0.0) is being deprecated in favor of the new OpenAI client (v1.4.0).
   [See the documentation for more details](https://sap.github.io/ai-sdk/docs/java/foundation-models/openai/chat-completion)
+- Generated classes for the following service specifications are subject to change:
+  - core
+  - openai
+  - orchestration
+  
+  Interfaces with only one implementation were reduced.
+  As a result, the accessors for fields `OrchestrationModuleConfig.inputTranslationConfig` and `OrchestrationModuleConfig.outputTranslationConfig` now handle the implementing class explicitly.
+  The same applies to helper methods `DpiMasking#createConfig()` and `MaskingProvider#createConfig()`.
 
 ### ✨ New Functionality