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The following commit(s) were added to refs/heads/4.2 by this push:
new bd71718887a MINOR: update notable changes for 4.1.0 release (#21307)
bd71718887a is described below
commit bd71718887a5bf541fa1f0aeafa737dfc07fa650
Author: Matthias J. Sax <[email protected]>
AuthorDate: Sat Jan 17 09:22:42 2026 -0800
MINOR: update notable changes for 4.1.0 release (#21307)
We should highlight the most relevant feature, EA of KIP-1071. Removing
KIP-1020 text as it's a minor change only.
Reviewers: Lucas Brutschy <[email protected]>, Chia-Ping Tsai
<[email protected]>
---
docs/getting-started/upgrade.md | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/docs/getting-started/upgrade.md b/docs/getting-started/upgrade.md
index a02fe9f0dab..002936f3e39 100644
--- a/docs/getting-started/upgrade.md
+++ b/docs/getting-started/upgrade.md
@@ -110,7 +110,10 @@ For further details, please refer to
[KIP-1120](https://cwiki.apache.org/conflue
* **Admin**
* The `listConsumerGroups()` and
`listConsumerGroups(ListConsumerGroupsOptions)` methods in `Admin` are
deprecated, and will be removed in the next major version. Use
`Admin.listGroups(ListGroupsOptions.forConsumerGroups())` instead.
* **Kafka Streams**
- * The `window.size.ms` and `window.inner.serde.class` in `StreamsConfig`
are deprecated. Use the corresponding string constants defined in
`TimeWindowedSerializer`, `TimeWindowedDeserializer`,
`SessionWindowedSerializer` and `SessionWindowedDeserializer` instead.
+ * Early Access for the Streams rebalance protocol. Following KIP-848,
[KIP-1071](https://cwiki.apache.org/confluence/display/KAFKA/KIP-1071%3A+Streams+Rebalance+Protocol)
adds broker side task assignment for Kafka Streams applications.
+ This feature is in Early Access, disabled by default, and not for
production use-cases.
+ We encourage users to try out the new "streams" group feature in lower
environments using "throw away" broker cluster,
+ and provide early feedback.
