release notes

Author: CharlesDuboisSAP

docs/release_notes.md

@@ -15,7 +15,13 @@
 - Extend `OpenAiClientException` and `OrchestrationClientException` to  retrieve error diagnostics information received from remote service.
   New available accessors for troubleshooting: `getErrorResponse()`, `getHttpResponse()` and, `getHttpRequest()`.
   Please note: depending on the error response, these methods may return `null` if the information is not available.
-
+- [OpenAI] Added new models for `OpenAiModel`: `GPT_5`, `GPT_5_MINI` and `GPT_5_NANO`.
+- [Orchestration] Added new models for `OrchestrationAiModel`: `GPT_5`, `GPT_5_MINI` and
+  `GPT_5_NANO`.
+- [Orchestration] Deprecated models for `OrchestrationAiModel`: `GEMINI_1_5_PRO` and
+  `OrchestrationAiModel.GEMINI_1_5_FLASH`
+  - Replacement are `GEMINI_2_5_PRO` and `GEMINI_2_5_FLASH`.
+- [Orchestration] Deprecated `OrchestrationAiModel.IBM_GRANITE_13B_CHAT` with no replacement.
 
 ### 📈 Improvements