Add functionality to delay query execution until a minimum number of workers
nodes are available. The minimum number of workers can be set with the
query-manager.required-workers configuration property, and the max wait
time with the query-manager.required-workers-max-wait configuration property.
Remove experimental pre-allocated memory system, and the related configuration
Add functionality to refresh the configuration of file-based access controllers.
The refresh interval can be set using the security.refresh-period
JDBC Driver Changes
Clear update count after calling Statement.getMoreResults().
Web UI Changes
Show query warnings on the query detail page.
Allow selecting non-default sort orders in query list view.
Hive Connector Changes
Prevent ORC writer from writing stripes larger than the maximum configured size.
Add hive.s3.upload-acl-type configuration property to specify the type of
ACL to use while uploading files to S3.
Add Hive metastore API recording tool for remote debugging purposes.
Add support for retrying on metastore connection errors.
Handle SQL execution timeouts while rewriting queries.