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Add April 2026 Flink community update blog post#839

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jlpayne72 wants to merge 9 commits intoapache:asf-sitefrom
jlpayne72:april-2026-community-update
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Add April 2026 Flink community update blog post#839
jlpayne72 wants to merge 9 commits intoapache:asf-sitefrom
jlpayne72:april-2026-community-update

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Summary

Monthly community update blog post for April 2026, covering March 2026 activity.

  • Hot topics: Flink 2.3 release, Flink CDC 3.6.0, documentation re-structure, native S3 connector
  • Developer/technical updates: Table API & SQL, Runtime, Checkpointing, Metrics, Python
  • User-facing updates: CDC 3.6.0 and Agents 0.2.1 releases, documentation
  • Governance: FLIP activity (558, 557, 561, 551, 332, 267) and dev list

Format follows the March 2026 post (#832).

🤖 Generated with Claude Code

Enhanced readability of the April 2026 Flink Community update by breaking long paragraphs into shorter ones for better clarity.
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@rmoff rmoff left a comment

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thanks for doing this @jlpayne72!
I've left some notes and suggestions.

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Comment thread docs/content/posts/2026-04-13-community-update.md
jlpayne72 and others added 2 commits April 14, 2026 16:31
Co-authored-by: Robin Moffatt <robin@rmoff.net>
Defined what a FLIP Is for new readers

* **[FLIP-202](https://cwiki.apache.org/confluence/display/FLINK/FLIP-202): [DRAFT] Introduce ClickHouse Connector.** - Community discussion ongoing for an officially supported ClickHouse sink connector.
* **[FLIP-332](https://cwiki.apache.org/confluence/display/FLINK/%5BWIP%5DFLIP-332%3A+Introduce+the+concept+of+state+self-sustained): [WIP] Introduce State Self-Sustained Concept.** - Explores state backends capable of managing their own lifecycle independently of checkpoints.
* **[FLIP-267](https://cwiki.apache.org/confluence/display/FLINK/FLIP+267%3A+Iceberg+Connector): Iceberg Connector.** - Continuing effort to formalise the Iceberg integration as a first-class Flink connector.
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why do we have it at all here?
FLIP-267: last modified Oct 2022 https://cwiki.apache.org/confluence/display/FLINK/FLIP+267%3A+Iceberg+Connector
discussion ML last response October 17, 2022 8:21:17 PM GMT+2: https://lists.apache.org/thread/ycdll6wxj4npz5h7zvoh9khtfw8vy9nr
voting ML last response October 25, 2022 8:06:00 AM GMT+2 https://lists.apache.org/thread/0lchkmf1g5z6lqbz8hmr5685tt0nlh8v

### FLIPs (under discussion)

* **[FLIP-202](https://cwiki.apache.org/confluence/display/FLINK/FLIP-202): [DRAFT] Introduce ClickHouse Connector.** - Community discussion ongoing for an officially supported ClickHouse sink connector.
* **[FLIP-332](https://cwiki.apache.org/confluence/display/FLINK/%5BWIP%5DFLIP-332%3A+Introduce+the+concept+of+state+self-sustained): [WIP] Introduce State Self-Sustained Concept.** - Explores state backends capable of managing their own lifecycle independently of checkpoints.
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why do we have it at all?

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I see links to FLIPs which are completely abandoned e.g. FLIP-267, FLIP-332
others I didn't check

please mention only those where the activity is present

jlpayne72 and others added 5 commits April 14, 2026 16:39
Co-authored-by: Sergey Nuyanzin <snuyanzin@confluent.io>
Removed documentation section detailing March updates.
Moved developer updates to user-facing updates section, ensuring clarity in the community update.
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4 participants