chore: merge release v1.39.0 to v1 (#6776)

Co-authored-by: adk-bot <223368873+adk-bot@users.noreply.github.com>

.github/.release-please-manifest-v1.json

@@ -1,3 +1,3 @@
 {
-  ".": "1.38.0"
+  ".": "1.39.0"
 }

.github/release-please-config-v1.json

@@ -57,5 +57,5 @@
       ]
     }
   },
-  "last-release-sha": "99c1aa325e448f2ff7a4ffd037f98fd5b20fb4c5"
+  "last-release-sha": "090869b9ba2953a29530ece68714fa973e80a151"
 }

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## [1.39.0](https://github.com/google/adk-python/compare/v1.38.0...v1.39.0) (2026-08-17)
+
+
+### Features
+
+* **live:** use RunConfig.session_resumption.handle when opening a live session ([#6770](https://github.com/google/adk-python/issues/6770)) ([090869b](https://github.com/google/adk-python/commit/090869b9ba2953a29530ece68714fa973e80a151))
+* support audio_stream_end for realtime input ([#6699](https://github.com/google/adk-python/issues/6699)) ([5e3b997](https://github.com/google/adk-python/commit/5e3b997f931292ef8b1c36e75bedb576f86645e1))
+
+
+### Bug Fixes
+
+* **live:** stop background tool tasks when a live agent run ends ([#6769](https://github.com/google/adk-python/issues/6769)) ([5fb5ff1](https://github.com/google/adk-python/commit/5fb5ff11ce6c727595c6f426ebbea676af0fe095))
+* validate session initialization events (v1) ([#6771](https://github.com/google/adk-python/issues/6771)) ([e7dba7a](https://github.com/google/adk-python/commit/e7dba7a4641b7b97c6b35c9fdc99e4b2d065cdef))
+
 ## [1.38.0](https://github.com/google/adk-python/compare/v1.37.0...v1.38.0) (2026-08-07)
 
 

src/google/adk/version.py

@@ -13,4 +13,4 @@
 # limitations under the License.
 
 # version: major.minor.patch
-__version__ = "1.38.0"
+__version__ = "1.39.0"