Release v2.26.1

This is a patch release following the upstream OpenTelemetry patch releases.

This release addresses a problem with RMI instrumentation.

General

• OpenTelemetry Instrumentation for Java has been updated to version 2.26.1.

🔒 Security fixes

• Fix unsafe deserialization in RMI instrumentation that could lead to remote code execution (CVE-2026-33701, #16979)

⚠️⚠️ Breaking changes ⚠️⚠️

• Context propagation format for RMI was changed #16979

Release v2.26.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.60.1.
• OpenTelemetry Instrumentation for Java has been updated to version 2.26.0.
• Includes Cisco Secure App (CSA) version "26.2.1-1436"

Release v2.25.1

• Update CSA to version 26.2.1-1436 (bundle is available here).

Release v2.25.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.59.0.
• OpenTelemetry Instrumentation for Java has been updated to version 2.25.0.
• Includes Cisco Secure App (CSA) version "25.12.0-1409"

Release v2.24.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.58.0.
• OpenTelemetry Instrumentation for Java has been updated to version 2.24.0.
• CSA version updated to 25.12.0-1409 #2582.

Release v2.23.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.57.0.
• OpenTelemetry Instrumentation for Java has been updated to version 2.23.0.

Release v2.22.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.56.0.
• OpenTelemetry Instrumentation for Java has been updated to version 2.22.0.

Release v2.21.1

Patch release.

• Update CSA version to 25.10.0-1399

Release v2.21.0

This is a regular cadence release following the upstream OpenTelemetry releases.

General

• OpenTelemetry Java SDK has been updated to version 1.55.0.
• OpenTelemetry Instrumentation for Java has been updated to version 2.21.0.

Release v2.20.1

This is a patch release following the upstream OpenTelemetry patch releases.

This addresses a problem with Prometheus protobufs.

General

• OpenTelemetry Java SDK has been updated to version 1.54.1.
• OpenTelemetry Instrumentation for Java has been updated to version 2.20.1.