Data sources now store passwords and basic auth passwords in `secureJsonData` encrypted by default. Existing data source with unencrypted passwords will keep working.
Read the [upgrade notes](/installation/upgrading/#upgrading-to-v6-2) on how to migrate existing data sources to use encrypted storage.
To mitigate the risk of [Clickjacking](https://www.owasp.org/index.php/Clickjacking), embedding Grafana is no longer allowed per default.
Read the [upgrade notes](/installation/upgrading/#upgrading-to-v6-2) for further details of how this may affect you.
To mitigate the risk of sensitive information being cached in browser after a user has logged out, browser caching is now disabled for full page requests.
- Environment variables support, see [Using environment variables](/administration/provisioning/#using-environment-variables) for more information.
- Reload provisioning configs, see [Admin HTTP API](/http_api/admin/#reload-provisioning-configurations) for more information.
- Do not allow deletion of provisioned dashboards
- When trying to delete or save provisioned dashboard, relative file path to the file is shown in the dialog.
## Official support for Elasticsearch 7
Grafana v6.2 ships with official support for Elasticsearch v7, see [Using Elasticsearch in Grafana](/features/datasources/elasticsearch/#elasticsearch-version) for more information.
## Bar Gauge Panel
Grafana v6.2 ships with a new exciting panel! This new panel, named Bar Gauge, is very similar to the current
Gauge panel and shares almost all it's options. The main difference is that the Bar Gauge uses both horizontal and
vertical space much better and can be more efficiently stacked both vertically and horizontally. The Bar Gauge also
comes with 3 unique display modes, Basic, Gradient, and Retro LED. Read the
[preview article](https://grafana.com/blog/2019/04/11/sneak-preview-of-new-visualizations-coming-to-grafana/) to learn
- Explore - Adds user time zone support, reconnect for failing data sources and a fix that prevents killing Prometheus instances when Histogram metrics are loaded.
- Alerting - Adds support for configuring timeout durations and retries, see [configuration](/installation/configuration/#evaluation-timeout-seconds) for more information.
Check out the [CHANGELOG.md](https://github.com/grafana/grafana/blob/master/CHANGELOG.md) file for a complete list of new features, changes, and bug fixes.