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Confluent Schema Registry Connector Release Notes

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Anypoint Connector for Confluent Schema Registry (Confluent Schema Registry Connector) enables interaction with Confluent’s Schema Registry to save and retrieve avro schemas to reduce the size of an avro message while it transports through the network.

Guide: Confluent Schema Registry Connector User Guide

1.2.4

October 23, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The jackson libraries are upgraded to version 2.22.4.

  • The json library is upgraded to version 20260814.

  • The connector now explicitly resolves the commons-lang3 library to version 3.21.0 to prevent a consumer-side version conflict.

W-24590619

1.2.3

October 13, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

Equivalent dynamic configurations now reuse the same Mule cache key when their Avro schema parse-cache settings match, which prevents unnecessary HTTP-client resources.

W-24507323

These libraries are upgraded to address reported security vulnerabilities:

  • The guava library is upgraded to version 33.7.2-jre.

  • The commons-lang3 library is upgraded to version 3.21.0.

W-24373980

1.2.2

September 29, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

These libraries are upgraded to address reported security vulnerabilities:

  • The jackson-core library is upgraded to version 2.22.3.

  • The jackson-databind library is upgraded to version 2.22.3.

  • The guava library is upgraded to version 33.7.1-jre.

W-24309351

1.2.1

September 3, 2026

What’s New

  • This release includes general security fixes.

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

1.2.0

August 28, 2026

What’s New

  • This connector version requires Mule runtime 4.6.22 or later if you’re using Mule 4.6.x, or Mule runtime 4.9.9 or later if you’re using Mule 4.9.x. If you prefer not to upgrade your Mule runtime, use the connector version released immediately after this one.

  • The Replace id with AVRO schema operation can now optionally cache parsed Avro schemas so that, when the cache is enabled, each schema is parsed only once instead of on every message. The cache is disabled by default; enable it in the connector configuration by setting Maximum size to the number of distinct schemas to retain (0, the default, keeps the cache disabled). Optionally set Time to live and Time to live time unit to evict schemas that go idle. Enabling the cache is recommended for high-throughput flows that repeatedly resolve a bounded set of schemas — whether a single schema or a fixed group of them — such as streaming Kafka records off one or a handful of subjects, where it avoids redundant parsing. Set Maximum size to at least the number of distinct schemas the flow handles so all of them stay cached. For more information, see Config.

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

Avro schema processing is improved: the connector now avoids re-parsing Avro schemas on every message by caching parsed schemas, which reduces redundant work when a bounded set of schemas is resolved repeatedly under load.

W-22611211

1.1.5

May 15, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The com.fasterxml.jackson.core:jackson-core component is upgraded to 2.21.1.

W-22383185

The com.fasterxml.jackson.core:jackson-databind component is upgraded to 2.21.1.

W-22383185

The com.google.guava:guava component is upgraded to 33.5.0-jre.

W-22383187

1.1.4

April 29, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

Avro messages are no longer incorrectly split when payload bytes happen to match the Confluent Wire Format header pattern. The connector now uses stream-based Avro decoding to determine record boundaries.

W-21892043

The org.apache.logging.log4j:log4j-* component is upgraded to 2.25.4.

W-22008656

1.1.3

March 19, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The com.fasterxml.jackson.core:jackson-databind component is upgraded to 2.21.1.

W-21466248

The com.fasterxml.jackson.core:jackson-core component is upgraded to 2.21.1.

W-21466248

The org.apache.kafka:kafka-clients component is upgraded to 3.9.2.

W-21466248

1.1.2

February 25, 2026

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The org.apache.avro:avro component is upgraded to 1.11.5.

W-21240549

The org.apache.commons:commons-compress component is upgraded to 1.28.0.

W-21240549

The commons-io:commons-io component is upgraded to 2.21.0.

W-21240549

The org.json:json component is upgraded to 20251224.

W-21240549

The org.apache.logging.log4j:log4j-* component is upgraded to 2.25.3.

W-21240549

The com.fasterxml.jackson.core:jackson-* component is upgraded to 2.20.1.

W-21240549

The org.apache.commons:commons-lang3 component is upgraded to 3.20.0.

W-21240549

1.1.1

May 16, 2025

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

This release includes general security fixes.

W-16206150

1.1.0

March 24, 2025

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

This release includes general security fixes.

W-17137979

The log4j dependency is upgraded to version 2.17.1 to address reported security vulnerabilities.

W-17983831

1.0.13

July 12, 2024

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The Replace AVRO schema with id and Replace id with AVRO schema operations no longer face issues when the Schema ID field is null.

W-16206150

1.0.12

June 27, 2024

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The Replace AVRO schema with id and Replace id with AVRO schema operations now process lists of records correctly.

W-15282008

1.0.11

April 29, 2024

What’s New

  • This connector is now compatible with Java 17.

  • This connector is now FIPS 140-2 compliant.

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

OpenJDK

8, 11, and 17

Confluent Schema Registry

6.0.x

1.0.10

January 22, 2024

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The org.json component is upgraded from version 20230227 to version 20231013 to address reported security vulnerabilities.

W-14462883

The org.apache.avro component is upgraded from version 1.11.0 to version 1.11.3 to address reported security vulnerabilities.

W-14462860

The com.fasterxml.jackson.core component is upgraded from version 2.14.2 to version 2.15.0 to address reported security vulnerabilities.

W-14462876

1.0.9

May 15, 2023

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue Resolution ID

The com.fasterxml.jackson.core library is upgraded to version 2.15.0 to address reported security vulnerabilities.

W-12665860

1.0.8

April 13, 2022

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Fixed reported security vulnerabilities by upgrading the Jackson Databind library from com.fasterxml.jackson.core:jackson-databind:2.11.3 to com.fasterxml.jackson.core:jackson-databind:2.13.2.2.

W-10920499

1.0.7

January 10, 2022

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9902

1.0.6

December 21, 2021

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9677

1.0.5

December 15, 2021

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9591

1.0.4

December 13, 2021

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Upgraded library dependencies.

CONN-9559

1.0.3

September 17, 2021

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

There was a dependency issue in Design Center.

CONN-8849

1.0.2

September 15, 2021

Compatibility

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

Issue ID

Updated dependencies.

CONN-8849

1.0.1

August 11, 2021

Compatibility

Confluent Schema Registry Connector is compatible with these software versions:

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

Fixed Issues

  • Fixed all reported security vulnerabilities.

1.0.0

August 2, 2021

Compatibility

Confluent Schema Registry Connector is compatible with these software versions:

Software Version

Mule runtime engine

4.3.0 and later

Open JDK

8 and 11

Confluent Schema Registry

6.0.x

New Features

New connector.

For a list of supported configurations and operations, see the Confluent Schema Registry Connector Reference Guide.

See Also