Update RELEASE-NOTES.md on 2.x branch (#13679)

RELEASE-NOTES.md

@@ -1,6 +1,29 @@
 # Prefect Release Notes
 
-# Release 2.19.2
+## Release 2.19.3
+
+### New method for generating parameter schemas without dependencies
+
+`prefect deploy` now works even when dependencies are missing from the current environment. This can speed up deployment via CI by removing the need to install dependencies before deploying your flows.
+
+See the following pull requests for implementation details:
+- https://github.com/PrefectHQ/prefect/pull/13620
+- https://github.com/PrefectHQ/prefect/pull/13315
+
+### Enhancements
+- Provide URL in CLI output upon work pool creation — https://github.com/PrefectHQ/prefect/pull/13597
+
+### Fixes
+- Ensure graceful cancellation of flow runs corresponding to deleted deployments — https://github.com/PrefectHQ/prefect/pull/13669
+
+### Integrations
+- Add loading state to concurrency limits table in the Prefect UI — https://github.com/PrefectHQ/prefect-ui-library/pull/2483
+- Remove old schema properties from deployments in the Prefect UI — https://github.com/PrefectHQ/prefect-ui-library/pull/2482
+- Add handling for multi-word dbt CLI commands — https://github.com/PrefectHQ/prefect/pull/13616
+
+**All changes**: https://github.com/PrefectHQ/prefect/compare/2.19.2...2.19.3
+
+## Release 2.19.2
 
 ### Fixes
 - Ensure `/deployments` endpoints hydrate workspace variables — https://github.com/PrefectHQ/prefect/pull/13540
@@ -13,7 +36,7 @@
 
 **All changes**: https://github.com/PrefectHQ/prefect/compare/2.19.1...2.19.2
 
-# Release 2.19.1
+## Release 2.19.1
 
 ### Enhancements to `prefect-dbt` for running `dbt-core` commands