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docs: Add upgrade notes for Druid 29.0.1 (#16123)

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Katya Macedo 2024-04-09 15:56:57 -05:00 committed by GitHub
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@ -26,6 +26,20 @@ The upgrade notes assume that you are upgrading from the Druid version that imme
For the full release notes for a specific version, see the [releases page](https://github.com/apache/druid/releases).
## 29.0.1
### Incompatible changes
#### Changes to `targetDataSource` in EXPLAIN queries
Druid 29.0.1 includes a breaking change that restores the behavior for `targetDataSource` to its 28.0.0 and earlier state, different from Druid 29.0.0 and only 29.0.0. In 29.0.0, `targetDataSource` returns a JSON object that includes the datasource name. In all other versions, `targetDataSource` returns a string containing the name of the datasource.
If you're upgrading from any version other than 29.0.0, there is no change in behavior.
If you are upgrading from 29.0.0, this is an incompatible change.
[#16004](https://github.com/apache/druid/pull/16004)
## 29.0.0
### Upgrade notes