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# OpenTelemetry Lambda Java changelog

Changes to the Coralogix Java Lambda layer and the shared Lambda Telemetry Exporter. Each entry identifies the Java layer version and, when applicable, the shared exporter version it ships with.

Sep 23, 2026

Java layer 19

Improved

Updated the OpenTelemetry Java agent and SDK libraries from `2.28.0` to `2.31.1`.

May 26, 2026

Java layer 18

Improved

* Updated the Java SDK libraries to `2.28.0`: `aws-lambda-events` and `aws-sdk`.

* Added trigger support for DynamoDB, Cognito, EventBridge, SNS, Kinesis, and Step Functions.

* Inspected and patched SDK libraries for FIPS environments.

Nov 28, 2025

Java layer 17 · Lambda Telemetry Exporter 1.2.1

Improved

Updated libraries used by the shared Lambda Telemetry Exporter.

Apr 29, 2025

Java layer 16 · Lambda Telemetry Exporter 1.2.0

New

* Added combined telemetry export, which sends logs, traces, and metrics in one request when `CX_COMBINED_TELEMETRY_ENABLED=true`.

* Retries are now limited to eligible telemetry delivery errors.

Apr 7, 2025

Java layer 15 · Lambda Telemetry Exporter 1.1.0

Improved

* Added resource-attribute and `cx_metadata` controls, including `CX_LOGS_METADATA_INCLUDE_TRACE_REF`, `CX_LOGS_METADATA_INCLUDE_EXECUTION`, `CX_LOGS_METADATA_INCLUDE_INVOCATION_ID`, `CX_*RESOURCE_BUILT_IN_ATTRIBUTES`, and `CX_*RESOURCE_EXTRA_ATTRIBUTES`.

* Added platform-log trimming controls: `CX_PLATFORM_LOGS_INCLUDE_REQUEST_ID` and `CX_PLATFORM_LOGS_HIDE_DEFAULT_VALUES`.

* Supports splitting telemetry delivery between an OpenTelemetry URL and Firehose.

Mar 25, 2025

Java layer 14

Improved

Updated Java instrumentation packages to `1.33.6`.

Feb 5, 2025

Java layer 13 · Lambda Telemetry Exporter 1.0.1

Improved

Made Firehose delivery errors more verbose.

Jan 20, 2025

Java layer 12 · Lambda Telemetry Exporter 1.0.0

Fixed

Ensured OTLP server sockets open before the extension registers with AWS.

Dec 13, 2024

Java layer 11 · Lambda Telemetry Exporter 0.9.2

New

Added `CX_PLATFORM_LOGS` to selectively disable platform event logs.

Dec 5, 2024

Java layer 10 · Lambda Telemetry Exporter 0.9.1

Improved

Added exporter warm-up spans.

Nov 6, 2024

Java layer 9 · Lambda Telemetry Exporter 0.9.0

Fixed

* Fixed the arm64 `GLIBC` issue and processing of spans received after `runtime_done`.

* HTTP/2 is assumed when telemetry is sent to Coralogix or `CX_OTEL_URL`; re-enable ALPN with `CX_OTEL_APLN_ENABLED=t` when required.

* Added the `ap-southeast-5` AWS Region.

Oct 14, 2024

Java layer 8 · Lambda Telemetry Exporter 0.8.0

New

* Added OOM detection for `Runtime.OutOfMemory` errors.

* Added `CX_OTEL_LOGS_URL`, `CX_OTEL_TRACES_URL`, and `CX_OTEL_METRICS_URL` to route individual telemetry signals independently.

Aug 2, 2024

Java layer 7 · Lambda Telemetry Exporter 0.7.0

New

* Added early trigger and invocation spans for timeouts and function crashes.

* Added telemetry metric reduction; set `CX_OTEL_METRICS_MODE=direct` to disable it.

* Fixed OOM detection when memory use exceeds the configured limit.

Jun 29, 2024

Java layer 6 · Lambda Telemetry Exporter 0.6.5

Fixed

Fixed consumer spans not being recognized as the main function span.

May 27, 2024

Java layer 5 · Lambda Telemetry Exporter 0.6.4

New

Added `CX_SERVICE_NAME` to customize the default service name.

Mar 29, 2024

Java layer 3 · Lambda Telemetry Exporter 0.6.3

Fixed

Fixed `CX_TRACING_MODE=disabled` and `CX_TRACING_MODE=telemetry_api` forwarding OpenTelemetry traces. Only `CX_TRACING_MODE=otel` forwards them.

Nov 30, 2023

Java layer 2 · Lambda Telemetry Exporter 0.6.2

Fixed

Fixed truncation of logs containing multi-byte UTF-8 characters.

Nov 27, 2023

Java layer 1 · Lambda Telemetry Exporter 0.6.1

Changed

* Renamed `CX_PRIVATE_KEY` to `CX_API_KEY`; the previous name remains supported.

* Fixed an incorrect missing-span warning.