diff --git a/release-notes.md b/release-notes.md
index b2bc9f31..2529177b 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -6,13 +6,13 @@
 * Consistent UX for MFA Screens
 
 ## Other changes:
-* none
+* Service to UI interaction is now with one bulk update of services instead of one event per service update
 
 ## Bugs fixed:
 * none
 
 ## Dependency Updates
-* none
+* Tunneler SDK to v0.16.0 (CSDK 0.22.1)
 
 # Release 1.9.2
 
diff --git a/service/build.bat b/service/build.bat
index 006f4305..4ebe7d51 100644
--- a/service/build.bat
+++ b/service/build.bat
@@ -14,7 +14,7 @@ REM See the License for the specific language governing permissions and
 REM limitations under the License.
 REM
 SET REPO_URL=https://github.com/openziti/ziti-tunnel-sdk-c.git
-SET ZITI_TUNNEL_REPO_BRANCH=v0.15.1
+SET ZITI_TUNNEL_REPO_BRANCH=v0.16.0
 REM override the c sdk used in the build - leave blank for the same as specified in the tunneler sdk
 SET ZITI_SDK_C_BRANCH=
 REM the number of TCP connections the tunneler sdk can have at any one time