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SamBarker merged 6 commits into from
Dec 3, 2025
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Add blog post for Kroxylicious 0.18.0 #210

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Add blog post for Kroxylicious 0.18.0
k-wall Nov 28, 2025
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Update 2025-11-28-release-0_18_0.md
k-wall Nov 28, 2025
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Add links to design proposals.
SamBarker Dec 3, 2025
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SamBarker Dec 3, 2025
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34 changes: 34 additions & 0 deletions _posts/2025-11-28-release-0_18_0.md
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---
layout: post
title: "Kroxylicious release 0.18.0"
date: 2025-11-28 00:00:00 +0000
author: "Keith Wall"
author_url: "https://github.com/k-wall"
# noinspection YAMLSchemaValidation
categories: blog kroxylicious-proxy releases
tags: [ "releases", "kroxylicious-proxy" ]
---

The Kroxylicious project is very pleased to announce the release of [Kroxylicious 0.18.0](https://github.com/kroxylicious/kroxylicious/releases/tag/v0.18.0). See the [Changelog](https://github.com/kroxylicious/kroxylicious/blob/main/CHANGELOG.md#0180) for a list of changes and summary of Deprecations, Changes and Removals.

The main highlights of this release are:

### Filter API Improvements

* Filters now have a convenient mechanism to convert from topic ids [KIP-516](https://cwiki.apache.org/confluence/display/KAFKA/KIP-516%3A+Topic+Identifiers) to topic names this is based on [design proposal#008](https://github.com/kroxylicious/design/blob/main/proposals/008-topic-name-lookup-facility.md)
* Filters now have access to a Subject API that provides convenient access to the authenticated principals established by the channel. This is a building block for filters that need to enforce authorization checks or want to write an audit trail of Kafka actions. Further details and context can be found
in [design proposal#009](https://github.com/kroxylicious/design/blob/main/proposals/009-authorizer.md)

### Authorizer Filter

We've added a new Authorizer Filter that can authorize Topic operations using the same semantics as Kafka own Authorization API. This allows you to enforce authorizations rules at the proxy.

### Azure KMS integration for Record Encryption

With this release, Record Encryption now has the capability to use Azure Vault for storage of the key material used to encrypt Kafka records.

### Feedback

Please let us know if you find the project interesting or helpful, and especially if
you have deployed it in production.
You can reach us through [Slack](https://kroxylicious.slack.com), [GitHub](https://github.com/kroxylicious/kroxylicious/issues) or even [bsky](https://bsky.app/profile/kroxylicious.io)).