Update CHANGELOG.md

Author: daymxn

firebase-ai/CHANGELOG.md

@@ -1,24 +1,10 @@
 # Unreleased
-* [fixed] **Breaking Change**: Fixed missing builder methods and return types in builders.
-* [changed] **Breaking Change**: `LiveModelFutures.connect` now returns `ListenableFuture<LiveSessionFutures>` instead of `ListenableFuture<LiveSession>`.
-    * **Action Required:** Remove any transformations from LiveSession object to LiveSessionFutures object.
-    * **Action Required:** Change type of variable handling `LiveModelFutures.connect` to `ListenableFuture<LiveSessionsFutures>`
-* [changed] **Breaking Change**: Removed `UNSPECIFIED` value for enum class `ResponseModality`
-    * **Action Required:** Remove all references to `ResponseModality.UNSPECIFIED`
-* [changed] **Breaking Change**: Renamed `LiveGenerationConfig.setResponseModalities` to `LiveGenerationConfig.setResponseModality`
-    * **Action Required:** Replace all references of `LiveGenerationConfig.setResponseModalities` with `LiveGenerationConfig.setResponseModality`
-* [feature] Added support for `HarmBlockThreshold.OFF`. See the
-  [model documentation](https://cloud.google.com/vertex-ai/generative-ai/docs/multimodal/configure-safety-filters#how_to_configure_content_filters){: .external}
-  for more information.
-* [fixed] Improved thread usage when using a `LiveGenerativeModel`. (#6870)
-* [fixed] Fixed an issue with `LiveContentResponse` audio data not being present when the model was
-  interrupted or the turn completed. (#6870)
-* [fixed] Fixed an issue with `LiveSession` not converting exceptions to `FirebaseVertexAIException`. (#6870)
-* * [changed] **Breaking Change**: Removed the `LiveContentResponse.Status` class, and instead have nested the status
-  fields as properties of `LiveContentResponse`. (#6906)
-* [changed] **Breaking Change**: Removed the `LiveContentResponse` class, and instead have provided subclasses
-  of `LiveServerMessage` that match the responses from the model. (#6910)
-* [feature] Added support for the `id` field on `FunctionResponsePart` and `FunctionCallPart`. (#6910)
-* [feature] Add support for specifying response modalities in `GenerationConfig`. (#6921)
-* [feature] Added a helper field for getting all the `InlineDataPart` from a `GenerateContentResponse`. (#6922)
+* [feature] Initial release of the Firebase AI SDK (`firebase-ai`). This SDK *replaces* the previous
+ Vertex AI in Firebase SDK (`firebase-vertexai`) to accommodate the evolving set of supported
+ features and services.
+  * The new Firebase AI SDK provides **public preview** support for the Gemini Developer API, including its free tier offering.
+  * Using the Firebase AI SDK with the Vertex AI Gemini API is still generally available (GA).
+* [feature] **Public Preview:** Added support for specifying response modalities in GenerationConfig
+ (only available in the new `firebase-ai` package). This includes public experimental support for
+ image generation using specific Gemini models; for details, see https://firebase.google.com/docs/vertex-ai/models.