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# Deprecation of Coralogix Log4j SDK

**Published**: February 16, 2026

**Effective**: June 30, 2026

## Deprecation notice[​](#deprecation-notice "Direct link to Deprecation notice")

Coralogix will deprecate the [Coralogix Log4j SDK](https://coralogix.com/docs/docs/integrations/sdks/log4j/.md) on June 30, 2026.

Coralogix Log4j libraries are deprecated in favor of [OpenTelemetry logging for Java](https://coralogix.com/docs/docs/opentelemetry/instrumentation-options/java-opentelemetry-instrumentation/.md), which is now the recommended and supported approach for exporting logs and correlating them with traces to Coralogix.

Action is required to ensure continued support and compatibility.

## Why this is happening[​](#why-this-is-happening "Direct link to Why this is happening")

OpenTelemetry provides a standardized approach for logs, metrics, and traces, including support for bridging logs from common logging frameworks into the OpenTelemetry data model.

## What’s affected[​](#whats-affected "Direct link to What’s affected")

Coralogix Log4j appender libraries for Log4j 1.x and Log4j 2.x are being deprecated.

These libraries may currently be used in:

* Java services using Log4j where Coralogix appenders are configured in Log4j configuration files
* Applications that configure Coralogix-specific credentials inside Log4j appender configuration
* Build pipelines that package Coralogix Log4j appender dependencies

After the effective date, these SDKs will no longer be supported or maintained.

## What you need to do[​](#what-you-need-to-do "Direct link to What you need to do")

### Migrate to OpenTelemetry logging for Log4j[​](#migrate-to-opentelemetry-logging-for-log4j "Direct link to Migrate to OpenTelemetry logging for Log4j")

Replace [Coralogix Log4j SDK](https://coralogix.com/docs/docs/integrations/sdks/log4j/.md) appenders with an [OpenTelemetry-based approach](https://coralogix.com/docs/docs/opentelemetry/instrumentation-options/java-opentelemetry-instrumentation/.md) and export via OTLP.

## What will happen after June 30, 2026?[​](#what-will-happen-after-june-30-2026 "Direct link to What will happen after June 30, 2026?")

* The Coralogix Log4j SDK will no longer be supported.
* No bug fixes, updates, or security patches will be provided.
* Compatibility with newer Log4j versions is not guaranteed.
* Support requests related to the deprecated SDK may be declined.
* Existing applications may continue to function, but migration is strongly recommended.

## Need help?[​](#need-help "Direct link to Need help?")

Our team is here to help you migrate smoothly.

Reach out via our 24/7 in-app support or contact your Technical Account Manager, and we’ll guide you through the transition step by step.