Prepare release 2.26.0

Author: laurit

CHANGELOG.md

@@ -8,6 +8,11 @@ and this repository adheres to [Semantic Versioning](https://semver.org/spec/v2.
 
 ## Unreleased
 
+## v2.26.0 - 2026-03-18
+
+- OpenTelemetry Java SDK has been updated to version 1.60.1.
+- OpenTelemetry Instrumentation for Java has been updated to version 2.26.0.
+
 ## v2.25.1 - 2026-02-26
 
 - Update CSA to version 26.2.1-1436.

README.md

@@ -1,7 +1,7 @@
 # Splunk Distribution of OpenTelemetry Java
 
 ![Stable](https://img.shields.io/badge/status-stable-informational)
-[![OpenTelemetry Instrumentation for Java Version](https://img.shields.io/badge/otel-2.25.0-blueviolet)](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v2.25.0)
+[![OpenTelemetry Instrumentation for Java Version](https://img.shields.io/badge/otel-2.26.0-blueviolet)](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v2.26.0)
 [![Splunk GDI specification](https://img.shields.io/badge/GDI-1.8.0-blueviolet)](https://github.com/signalfx/gdi-specification/releases/tag/v1.8.0)
 [![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/signalfx/splunk-otel-java?include_prereleases)](https://github.com/signalfx/splunk-otel-java/releases)
 [![Maven Central](https://img.shields.io/maven-central/v/com.splunk/splunk-otel-javaagent)](https://central.sonatype.com/artifact/com.splunk/splunk-otel-javaagent)
@@ -43,11 +43,6 @@ see [Migrate from the SignalFx Java Agent](https://help.splunk.com/en/splunk-obs
 
 <!-- Comments, spacing, empty and new lines in the section below are intentional, please do not modify them! -->
 <!--DEV_DOCS_WARNING-->
-<!--DEV_DOCS_WARNING_START-->
-The following documentation refers to the in-development version of `splunk-otel-java`. Docs for the latest version ([v2.25.1](https://github.com/signalfx/splunk-otel-java/releases/latest)) can be found [here](https://github.com/signalfx/splunk-otel-java/blob/v2.25.1/README.md).
-
----
-<!--DEV_DOCS_WARNING_END-->
 
 ## Requirements
 
@@ -79,11 +74,11 @@ To extend the instrumentation with the OpenTelemetry Instrumentation for Java,
 you have to use a compatible API version.
 
 <!-- IMPORTANT: do not change comments or break those lines below -->
-The Splunk Distribution of OpenTelemetry Java version <!--SPLUNK_VERSION-->2.25.1<!--SPLUNK_VERSION--> is compatible
+The Splunk Distribution of OpenTelemetry Java version <!--SPLUNK_VERSION-->2.26.0<!--SPLUNK_VERSION--> is compatible
 with:
 
-* OpenTelemetry API version <!--OTEL_VERSION-->1.57.0<!--OTEL_VERSION-->
-* OpenTelemetry Instrumentation for Java version <!--OTEL_INSTRUMENTATION_VERSION-->2.25.0<!--OTEL_INSTRUMENTATION_VERSION-->
+* OpenTelemetry API version <!--OTEL_VERSION-->1.60.1<!--OTEL_VERSION-->
+* OpenTelemetry Instrumentation for Java version <!--OTEL_INSTRUMENTATION_VERSION-->2.26.0<!--OTEL_INSTRUMENTATION_VERSION-->
 
 ## Snapshot builds
 

agent/license-overrides.txt

@@ -1,2 +0,0 @@
-# opentelemetry-sdk-trace jar includes META-INF/maven/org.jctools/jctools-core Hopefully this will get removed in the next release and we won't need these overrides
-io.opentelemetry:opentelemetry-sdk-trace:1.59.0|https://github.com/open-telemetry/opentelemetry-java|Apache License, Version 2.0|https://www.apache.org/licenses/LICENSE-2.0

buildSrc/build.gradle.kts

@@ -41,7 +41,7 @@ dependencies {
   implementation(gradleApi())
 
   implementation("com.diffplug.spotless:spotless-plugin-gradle:8.3.0")
-  implementation("io.opentelemetry.instrumentation:gradle-plugins:2.25.0-alpha")
+  implementation("io.opentelemetry.instrumentation:gradle-plugins:2.26.0-alpha")
 
   // keep these versions in sync with settings.gradle.kts
   implementation("com.gradleup.shadow:shadow-gradle-plugin:9.4.0")

dependencyManagement/build.gradle.kts

@@ -6,7 +6,7 @@ val otelVersion = "1.60.1"
 val otelAlphaVersion = otelVersion.replaceFirst("(-SNAPSHOT)?$".toRegex(), "-alpha$1")
 val otelInstrumentationVersion = "2.26.0-SNAPSHOT"
 val otelInstrumentationAlphaVersion =  otelInstrumentationVersion.replaceFirst("(-SNAPSHOT)?$".toRegex(), "-alpha$1")
-val otelContribAlphaVersion = "1.53.0-alpha"
+val otelContribAlphaVersion = "1.54.0-alpha"
 
 val autoValueVersion = "1.11.1"
 val dockerJavaVersion = "3.7.0"

deployments/cloudfoundry/buildpack/README.md

@@ -40,7 +40,7 @@ If you want to use a specific version of the Java agent in your application, you
 environment variable before application deployment, either using `cf set-env` or the `manifest.yml` file:
 
 ```sh
-$ cf set-env SPLUNK_OTEL_JAVA_VERSION 2.25.1
+$ cf set-env SPLUNK_OTEL_JAVA_VERSION 2.26.0
 ```
 
 By default, the [latest](https://github.com/signalfx/splunk-otel-java/releases/latest) available agent version is used.

licenses/licenses.md

@@ -1,7 +1,7 @@
 
 # splunk-otel-javaagent
 ## Dependency License Report
-_2026-03-10 12:00:59 EET_
+_2026-03-17 16:11:25 EET_
 ## Apache License, Version 2.0
 
 **1** **Group:** `com.squareup.okhttp3` **Name:** `okhttp` **Version:** `5.3.2` 
@@ -80,15 +80,15 @@ _2026-03-10 12:00:59 EET_
 > - **POM Project URL**: [https://github.com/open-telemetry/opentelemetry-java](https://github.com/open-telemetry/opentelemetry-java)
 > - **POM License**: Apache License, Version 2.0 - [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)
 
-**20** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-opamp-client` **Version:** `1.53.0-alpha` 
+**20** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-opamp-client` **Version:** `1.54.0-alpha` 
 > - **POM Project URL**: [https://github.com/open-telemetry/opentelemetry-java-contrib](https://github.com/open-telemetry/opentelemetry-java-contrib)
 > - **POM License**: Apache License, Version 2.0 - [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)
 
-**21** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-resource-providers` **Version:** `1.53.0-alpha` 
+**21** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-resource-providers` **Version:** `1.54.0-alpha` 
 > - **POM Project URL**: [https://github.com/open-telemetry/opentelemetry-java-contrib](https://github.com/open-telemetry/opentelemetry-java-contrib)
 > - **POM License**: Apache License, Version 2.0 - [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)
 
-**22** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-samplers` **Version:** `1.53.0-alpha` 
+**22** **Group:** `io.opentelemetry.contrib` **Name:** `opentelemetry-samplers` **Version:** `1.54.0-alpha` 
 > - **POM Project URL**: [https://github.com/open-telemetry/opentelemetry-java-contrib](https://github.com/open-telemetry/opentelemetry-java-contrib)
 > - **POM License**: Apache License, Version 2.0 - [https://www.apache.org/licenses/LICENSE-2.0](https://www.apache.org/licenses/LICENSE-2.0)
 

metadata-generator/src/main/java/com/splunk/opentelemetry/tools/MetadataGenerator.java

@@ -935,6 +935,20 @@ otel.exporter.otlp.metrics.temporality.preference	OTEL_EXPORTER_OTLP_METRICS_TEM
             "",
             SettingType.STRING,
             SettingCategory.INSTRUMENTATION));
+    settings.add(
+        setting(
+            "otel.instrumentation.sanitization.url.experimental.sensitive-query-parameters",
+            "A comma-separated list of HTTP url parameter names. HTTP server and client instrumentations will redact the values of give url parameters.",
+            "AWSAccessKeyId, Signature, sig, X-Goog-Signature",
+            SettingType.STRING,
+            SettingCategory.INSTRUMENTATION));
+    settings.add(
+        setting(
+            "otel.instrumentation.http.known-methods",
+            "A comma-separated list of known HTTP methods. `_OTHER` will be used for methods not in this list.",
+            "CONNECT, DELETE, GET, HEAD, OPTIONS, PATCH, POST, PUT, TRACE",
+            SettingType.STRING,
+            SettingCategory.INSTRUMENTATION));
 
     // Capturing servlet request parameters
     // https://opentelemetry.io/docs/instrumentation/java/automatic/agent-config/#capturing-servlet-request-parameters
@@ -1050,6 +1064,8 @@ You can configure the agent to capture general identity attributes (enduser.id,
             "false",
             SettingType.BOOLEAN,
             SettingCategory.INSTRUMENTATION));
+    // deprecated in favor of
+    // otel.instrumentation.sanitization.url.experimental.sensitive-query-parameters
     settings.add(
         setting(
             "otel.instrumentation.http.client.experimental.redact-query-parameters",
@@ -2049,6 +2065,26 @@ Some instrumentations (e.g. Spring Web MVC instrumentation) produce SpanKind.Int
             SettingType.BOOLEAN,
             SettingCategory.INSTRUMENTATION));
 
+    // https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation/opensearch/README.md
+    /*
+    | `otel.instrumentation.opensearch.experimental-span-attributes` | Boolean | `false` | Enable the capture of experimental span attributes.  |
+    | `otel.instrumentation.opensearch.capture-search-query`         | Boolean | `true`  | Enable the capture of sanitized search query bodies. |
+     */
+    settings.add(
+        setting(
+            "otel.instrumentation.opensearch.experimental-span-attributes",
+            "Enable the capture of experimental span attributes.",
+            "false",
+            SettingType.BOOLEAN,
+            SettingCategory.INSTRUMENTATION));
+    settings.add(
+        setting(
+            "otel.instrumentation.opensearch.capture-search-query",
+            "Enable the capture of sanitized search query bodies.",
+            "true",
+            SettingType.BOOLEAN,
+            SettingCategory.INSTRUMENTATION));
+
     // https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/instrumentation/opentelemetry-extension-annotations-1.0/README.md
     /*
     | `otel.instrumentation.opentelemetry-annotations.exclude-methods` | String |         | All methods to be excluded from auto-instrumentation by annotation-based advices. |
@@ -3485,6 +3521,10 @@ Some instrumentations (e.g. Spring Web MVC instrumentation) produce SpanKind.Int
                 "jvm.file_descriptor.count",
                 MetricInstrument.UP_DOWN_COUNTER,
                 "Number of open file descriptors as reported by the JVM (disabled by default).")
+            .customMetric(
+                "jvm.file_descriptor.limit",
+                MetricInstrument.UP_DOWN_COUNTER,
+                "Measure of max open file descriptors as reported by the JVM (disabled by default).")
             // XXX JFR metrics from runtime-telemetry-java17 are missing
             .build());
     instrumentations.add(instrumentation("javalin").component("Javalin", "5.0 and higher").build());
@@ -3757,6 +3797,8 @@ Some instrumentations (e.g. Spring Web MVC instrumentation) produce SpanKind.Int
     instrumentations.add(
         instrumentation("xxl-job").component("XXL-JOB", "1.9.2 and higher").build());
     instrumentations.add(instrumentation("zio").component("ZIO", "2.0 and higher").build());
+    instrumentations.add(
+        instrumentation("zio-http").component("ZIO HTTP", "3.0 and higher").build());
 
     // splunk instrumentations
     instrumentations.add(
@@ -3866,7 +3908,7 @@ Some instrumentations (e.g. Spring Web MVC instrumentation) produce SpanKind.Int
         resourceProvider(
                 "io.opentelemetry.instrumentation.resources.OsResourceProvider",
                 "Os detector.",
-                List.of("os.type", "os.description"))
+                List.of("os.type", "os.description", "os.version"))
             .dependency(
                 "OpenTelemetry Java Instrumentation Resource Providers",
                 "https://github.com/open-telemetry/opentelemetry-java-instrumentation/tree/main/instrumentation/resources/library",

version.gradle.kts

@@ -1,5 +1,5 @@
 // do NOT update that variable manually - it is managed by the pre/post release scripts
-val distroVersion = "2.26.0-SNAPSHOT"
+val distroVersion = "2.26.0"
 
 allprojects {
   version = distroVersion