v1.27.0

What's Changed

• Add large-payload blob auto-purge with a persistent orchestration by wangbill (@YunchuWang) in #758
• Support configurable scheduler token audiences and government defaults by Bernd Verst (@berndverst) in #806
• Preserve original orchestration version in shim restarts by wangbill (@YunchuWang) in #808
• Fix orchestration history retrieval in the in-process test host by wangbill (@YunchuWang) in #809
• Fix omitted purge start times in the in-process test host by wangbill (@YunchuWang) in #810
• Release streamed history snapshots after test-host work items complete by wangbill (@YunchuWang) in #811
• Await backend operations before acknowledging test-host hub creation/deletion by wangbill (@YunchuWang) in #813
• Isolate in-process work-item completion by delivery token by wangbill (@YunchuWang) in #815
• Add SDK-owned blob purge service contract and shared task integration by wangbill (@YunchuWang) in #805
• Release v1.27.0 by wangbill (@YunchuWang) in #818

Full Changelog: v1.26.0...v1.27.0