Copybara import of the project:

--
3d9788b by release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>:

chore(main): release 1.48.0

COPYBARA_INTEGRATE_REVIEW=#1454 from googleapis:release-please--branches--main--components--genai 3d9788b
PiperOrigin-RevId: 893004218

Author: release-please[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.47.0"
+  ".": "1.48.0"
 }

CHANGELOG.md

@@ -1,6 +1,18 @@
 # Changelog
 
 
+## [1.48.0](https://github.com/googleapis/js-genai/compare/v1.47.0...v1.48.0) (2026-03-31)
+
+
+### Features
+
+* Support dedicated TextAnnotationDelta for streaming tool responses ([89552ba](https://github.com/googleapis/js-genai/commit/89552baa732f41a8d733893ccccb8dd00cd9d27f))
+
+
+### Bug Fixes
+
+* Fix service_tier enums. ([9bdc2ae](https://github.com/googleapis/js-genai/commit/9bdc2ae519e7e34af48593b69093b703f3871f15))
+
 ## [1.47.0](https://github.com/googleapis/js-genai/compare/v1.46.0...v1.47.0) (2026-03-27)
 
 

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@google/genai",
-  "version": "1.47.0",
+  "version": "1.48.0",
   "description": "",
   "type": "module",
   "main": "dist/node/index.mjs",

package.json

@@ -18,7 +18,7 @@ const CONTENT_TYPE_HEADER = 'Content-Type';
 const SERVER_TIMEOUT_HEADER = 'X-Server-Timeout';
 const USER_AGENT_HEADER = 'User-Agent';
 export const GOOGLE_API_CLIENT_HEADER = 'x-goog-api-client';
-export const SDK_VERSION = '1.47.0'; // x-release-please-version
+export const SDK_VERSION = '1.48.0'; // x-release-please-version
 const LIBRARY_LABEL = `google-genai-sdk/${SDK_VERSION}`;
 const VERTEX_AI_API_DEFAULT_VERSION = 'v1beta1';
 const GOOGLE_AI_API_DEFAULT_VERSION = 'v1beta';