v1.6.0 pre release changes (#560)

Author: Mateusz Rzeszutek

CHANGELOG.md

@@ -8,6 +8,27 @@ and this repository adheres to [Semantic Versioning](https://semver.org/spec/v2.
 
 ## Unreleased
 
+## v1.6.0 - 2021-12-01
+
+### General
+
+- OpenTelemetry Java SDK and OpenTelemetry Instrumentation for Java dependencies have been updated to version 1.9.1.
+- Micrometer dependency has been updated to version 1.8.0.
+
+### Bugfixes
+
+- Fix Tomcat thread pool metrics in Tomcat 10.
+- Disabled correlation by span links in messaging instrumentations. Now the `PRODUCER`-`CONSUMER` spans will always have
+  parent-child relationship.
+
+### Enhancements
+
+- The [Micrometer bridge instrumentation](docs/metrics.md#manual-instrumentation) now supports versions starting from
+  1.3.0.
+- A new [Oracle Universal Connection Pool](https://docs.oracle.com/database/121/JJUCP/intro.htm#JJUCP8109)
+  instrumentation has been added. The agent now collects and exports metrics for Oracle UCP connection pools.
+- Profiling: changed the default thread dump rate to 10 seconds (previously 1 second).
+
 ## v1.5.0 - 2021-10-20
 
 ### General

README.md

@@ -12,8 +12,8 @@
 
 <p align="center">
   <img alt="Stable" src="https://img.shields.io/badge/status-stable-informational?style=for-the-badge">
-  <a href="https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v1.7.0">
-    <img alt="OpenTelemetry Instrumentation for Java Version" src="https://img.shields.io/badge/otel-1.7.0-blueviolet?style=for-the-badge">
+  <a href="https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/tag/v1.9.1">
+    <img alt="OpenTelemetry Instrumentation for Java Version" src="https://img.shields.io/badge/otel-1.9.1-blueviolet?style=for-the-badge">
   </a>
   <a href="https://github.com/signalfx/gdi-specification/releases/tag/v1.2.0">
     <img alt="Splunk GDI specification" src="https://img.shields.io/badge/GDI-1.2.0-blueviolet?style=for-the-badge">
@@ -78,11 +78,6 @@ see [Migrate from the SignalFx Java Agent](https://docs.splunk.com/Observability
 
 <!-- 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 documentation below refers to the in development version of this package. Docs for the latest version ([v1.5.0](https://github.com/signalfx/splunk-otel-java/releases/latest)) can be found [here](https://github.com/signalfx/splunk-otel-java/blob/v1.5.0/README.md).
-
----
-<!--DEV_DOCS_WARNING_END-->
 
 ## Requirements
 
@@ -164,12 +159,12 @@ 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-->1.5.0<!--SPLUNK_VERSION--> is compatible
+The Splunk Distribution of OpenTelemetry Java version <!--SPLUNK_VERSION-->1.6.0<!--SPLUNK_VERSION--> is compatible
 with:
 
-* OpenTelemetry API version <!--OTEL_VERSION-->1.7.0<!--OTEL_VERSION-->
-* OpenTelemetry Instrumentation for Java version <!--OTEL_INSTRUMENTATION_VERSION-->1.7.0<!--OTEL_INSTRUMENTATION_VERSION-->
-* Micrometer version 1.7.5
+* OpenTelemetry API version <!--OTEL_VERSION-->1.9.1<!--OTEL_VERSION-->
+* OpenTelemetry Instrumentation for Java version <!--OTEL_INSTRUMENTATION_VERSION-->1.9.1<!--OTEL_INSTRUMENTATION_VERSION-->
+* Micrometer version 1.8.0
 
 ## Snapshot builds
 

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 1.5.0
+$ cf set-env SPLUNK_OTEL_JAVA_VERSION 1.6.0
 ```
 
 By default, the [latest](https://github.com/signalfx/splunk-otel-java/releases/latest) available agent version is used.

docs/metrics.md

@@ -39,16 +39,18 @@ For Maven users:
 <dependency>
     <groupId>io.micrometer</groupId>
     <artifactId>micrometer-core</artifactId>
-    <version>1.7.3</version>
+    <version>1.8.0</version>
 </dependency>
 ```
 
 For Gradle users:
 
 ```kotlin
-implementation("io.micrometer:micrometer-core:1.7.3")
+implementation("io.micrometer:micrometer-core:1.8.0")
 ```
 
+The agent supports all micrometer versions starting from 1.3.
+
 ### Adding custom metrics
 
 You can use one of meter factory methods provided by the `Metrics` class, or use meter builders and refer to