The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
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grafana/docs/sources/upgrade-guide/upgrade-v8.3/index.md

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---
description: Guide for upgrading to Grafana v8.3
keywords:
- grafana
- configuration
- documentation
- upgrade
title: Upgrade to Grafana v8.3
menutitle: Upgrade to v8.3
weight: 2600
---
# Upgrade to Grafana v8.3
{{< docs/shared "upgrade/upgrade-common-tasks.md" >}}
## Technical notes
This section describes technical changes associated with this release of Grafana.
### Dashboard references
In 8.3, Grafana dashboards now reference data sources using an object with `uid` and `type` properties instead of the data source name property. A schema migration is applied when existing dashboards open. If you provision dashboards to multiple Grafana instances, then we recommend that you also provision data sources. You can specify the `uid` to be the same for data sources across your instances.
If you need to find the `uid` for a data source created in the UI, check the URL of the data source settings page. The URL follows the pattern ` /data source/edit/${uid}`, meaning the last part is the `uid`.