v0.32.0

• FEATURE: add a Group hits by option to Raw Logs queries in Explore: the logs volume histogram can be grouped by any log field instead of the default level. See #689.

• BUGFIX: send an explicit end bound in the datasource health check. Without it, VictoriaLogs defaulted the upper bound to the maximum int64 nanosecond timestamp (year 2262), so instances running with -search.maxQueryTimeRange failed "Save & test" with too big time range selected. See #712. Thanks to @dberkerdem for contributing.

• BUGFIX: keep the selected fields in the Explore logs panel after a query returns no results. Previously, an empty result reset the field selection. See #714.