update

Author: YunchuWang

CHANGELOG.md

@@ -1,4 +1,6 @@
 ## placeholder
+* Update protobuf definitions to include new properties in OrchestratorRequest and update source commit hash ([#214](https://github.com/microsoft/durabletask-java/pull/214))
+## v1.5.1.preview
 * DTS Support ([#201](https://github.com/microsoft/durabletask-java/pull/201))
 * Add automatic proto file download and commit hash tracking during build ([#207](https://github.com/microsoft/durabletask-java/pull/207))
 * Fix infinite loop when use continueasnew after wait external event ([#183](https://github.com/microsoft/durabletask-java/pull/183))