mirror of https://github.com/apache/druid.git
119 lines
4.0 KiB
Markdown
119 lines
4.0 KiB
Markdown
---
|
|
id: release-notes
|
|
title: "Release notes"
|
|
---
|
|
|
|
<!--
|
|
~ Licensed to the Apache Software Foundation (ASF) under one
|
|
~ or more contributor license agreements. See the NOTICE file
|
|
~ distributed with this work for additional information
|
|
~ regarding copyright ownership. The ASF licenses this file
|
|
~ to you under the Apache License, Version 2.0 (the
|
|
~ "License"); you may not use this file except in compliance
|
|
~ with the License. You may obtain a copy of the License at
|
|
~
|
|
~ http://www.apache.org/licenses/LICENSE-2.0
|
|
~
|
|
~ Unless required by applicable law or agreed to in writing,
|
|
~ software distributed under the License is distributed on an
|
|
~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
~ KIND, either express or implied. See the License for the
|
|
~ specific language governing permissions and limitations
|
|
~ under the License.
|
|
-->
|
|
|
|
<!--Replace {{DRUIDVERSION}} with the correct Druid version.-->
|
|
|
|
Apache Druid {{DRUIDVERSION}} contains over $NUMBER_FEATURES new features, bug fixes, performance enhancements, documentation improvements, and additional test coverage from $NUMBER_OF_CONTRIBUTORS contributors.
|
|
|
|
<!--
|
|
Replace {{MILESTONE}} with the correct milestone number. For example: https://github.com/apache/druid/issues?q=is%3Aclosed+milestone%3A28.0+sort%3Aupdated-desc+
|
|
-->
|
|
|
|
See the [complete set of changes](https://github.com/apache/druid/issues?q=is%3Aclosed+milestone%3A{{MILESTONE}}+sort%3Aupdated-desc+) for additional details, including bug fixes.
|
|
|
|
Review the [upgrade notes](#upgrade-notes) and [incompatible changes](#incompatible-changes) before you upgrade to Druid {{DRUIDVERSION}}.
|
|
If you are upgrading across multiple versions, see the [Upgrade notes](upgrade-notes.md) page, which lists upgrade notes for the most recent Druid versions.
|
|
|
|
<!--
|
|
This file is a collaborative work in process. Adding a release note to this file doesn't guarantee its presence in the next release until the release branch is cut and the release notes are finalized.
|
|
|
|
This file contains the following sections:
|
|
- Important features, changes, and deprecations
|
|
- Functional area and related changes
|
|
- Upgrade notes and incompatible changes
|
|
|
|
Please add your release note to the appropriate section and include the following:
|
|
- Detailed title
|
|
- Summary of the changes (a couple of sentences) aimed at Druid users
|
|
- Link to the associated PR
|
|
|
|
If your release note contains images, put the images in the release-info/assets folder.
|
|
|
|
For tips about how to write a good release note, see [Release notes](https://github.com/apache/druid/blob/master/CONTRIBUTING.md#release-notes).
|
|
-->
|
|
|
|
## Important features, changes, and deprecations
|
|
|
|
This section contains important information about new and existing features.
|
|
|
|
## Functional area and related changes
|
|
|
|
This section contains detailed release notes separated by areas.
|
|
|
|
### Web console
|
|
|
|
#### Other web console improvements
|
|
|
|
### Ingestion
|
|
|
|
#### SQL-based ingestion
|
|
|
|
##### Other SQL-based ingestion improvements
|
|
|
|
#### Streaming ingestion
|
|
|
|
##### Other streaming ingestion improvements
|
|
|
|
### Querying
|
|
|
|
#### Other querying improvements
|
|
|
|
### Cluster management
|
|
|
|
#### Other cluster management improvements
|
|
|
|
### Data management
|
|
|
|
#### Other data management improvements
|
|
|
|
### Metrics and monitoring
|
|
|
|
### Extensions
|
|
|
|
### Documentation improvements
|
|
|
|
## Upgrade notes and incompatible changes
|
|
|
|
### Upgrade notes
|
|
|
|
#### Front-coded dictionaries
|
|
|
|
<!--Carry this forward until 32. Then move it to incompatible changes -->
|
|
|
|
In Druid 32.0.0, the front coded dictionaries feature will be turned on by default. Front-coded dictionaries reduce storage and improve performance by optimizing for strings where the front part looks similar.
|
|
|
|
Once this feature is on, you cannot easily downgrade to an earlier version that does not support the feature.
|
|
|
|
For more information, see [Migration guide: front-coded dictionaries](./migr-front-coded-dict.md).
|
|
|
|
If you're already using this feature, you don't need to take any action.
|
|
|
|
|
|
### Incompatible changes
|
|
|
|
### Developer notes
|
|
|
|
#### Dependency updates
|
|
|
|
The following dependencies have had their versions bumped: |