Release 94.4: Auto SerDes improvements

Factor House
July 14, 2025
xx min read
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Release Info

Kpow can be found on Dockerhub

docker pull factorhouse/kpow:94.4

View our Docker quick start guide for help getting started.

Kpow can be found on ArtifactHub

Helm version: 1.0.67

helm repo add factorhouse https://charts.factorhouse.io
helm repo update
helm install --namespace factorhouse --create-namespace my-kpow factorhouse/kpow --version 1.0.67 \
--set env.LICENSE_ID="00000000-0000-0000-0000-000000000001" \
--set env.LICENSE_CODE="KPOW_CREDIT" \
--set env.LICENSEE="Your Corp\, Inc." \
--set env.LICENSE_EXPIRY="2024-01-01" \
--set env.LICENSE_SIGNATURE="638......A51" \
--set env.BOOTSTRAP="127.0.0.1:9092\,127.0.0.1:9093\,127.0.0.1:9094" \
--set env.SECURITY_PROTOCOL="SASL_PLAINTEXT" \
--set env.SASL_MECHANISM="PLAIN" \
--set env.SASL_JAAS_CONFIG="org.apache.kafka.common.security.plain.PlainLoginModule required username=\"user\" password=\"secret\";"
--set env.LICENSE_CREDITS="7"

View our Helm instructions for help getting started.

Kpow can be found on the AWS Marketplace

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Kpow can be downloaded and installed as a Java JAR file. This JAR is compatible with Java versions 17+.

Download Kpow Java 17 JAR

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Kpow can be downloaded and installed as a Java JAR file. This JAR is compatible with Java versions 11+.

Download Kpow Java JAR

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Kpow can be downloaded and installed as a Java JAR file. This JAR is compatible with Java 8.

Download Kpow Java 8 JAR

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Download VPAT
Factor House publish a VPAT (Voluntary Product Accessibility Template) for each release.

For more information, read the Kpow accessibility documentation.

Auto SerDes improvements

94.4 is a small hotfix release following up from last week's 94.3 release.

Kpow's Auto SerDes feature works alongside our data policies feature. Data policies allow you to configure declarative redaction policies against your data. When data policies are configured, any SerDes marked as non-redactable (e.g., String) will be excluded from the list of deserializers Kpow will try to use to infer the topic's data.

94.3 had a bug with this implementation where Auto SerDes detection was failing unless you had configured Kpow with a data policies file. 94.4 fixes this bug.

We have also improved the Auto SerDes inference based on customer feedback. Kpow will attempt to infer String records as the lowest priority. Kpow ensures the inferred data is a valid UTF-8 encoded string when inferring.

Release v94.4 Changelog

See the Factor House Product Roadmap to understand current delivery priorities.

Kpow v94.4 Changelog

See the full Kpow Changelog for information on previous releases

  • Topic SerDes inference
    • Fix bug where Auto SerDes failed to infer data when data policies not configured
    • Include UTF-8 String in inference list (as lowest priority)
Release 95.3: Memory leak fix for in-memory compute users

95.3 fixes a memory leak in our in-memory compute implementation, reported by our customers.

Release 95.2: quality-of-life improvements across Kpow, Flex & Helm deployments

95.2 focuses on refinement and operability, with improvements across the UI, consumer group workflows, and deployment configuration. Alongside bug fixes and usability improvements, this release adds new Helm options for configuring the API and controlling service account credential automounting.

Release 95.1: A unified experience across product, web, docs and licensing

95.1 delivers a cohesive experience across Factor House products, licensing, and brand. This release introduces our new license portal, refreshed company-wide branding, a unified Community License for Kpow and Flex, and a series of performance, accessibility, and schema-related improvements.

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