Release 3.9.1

Author: mikereiche

antora.yml

@@ -14,7 +14,7 @@ asciidoc:
   attributes:
     page-nav-header-levels: 1
     server_version: '8.0.0'
-    sdk_current_version: '3.9.0'
+    sdk_current_version: '3.9.1'
     sdk_dot_minor: '3.9'
     sdk_dot_major: '3.x'
     version-server: '7.6'

modules/project-docs/pages/sdk-release-notes.adoc

@@ -45,6 +45,42 @@ echo metrics-micrometer ; grep '<version>' $src/metrics-micrometer/pom.xml | hea
 ////
 
 
+=== Version 3.9.1 (5 September 2025)
+
+This is the first maintenance release of the 3.9 series.
+
+https://packages.couchbase.com/clients/java/3.9.1/Couchbase-Java-Client-3.9.1.zip[Download] |
+https://docs.couchbase.com/sdk-api/couchbase-java-client-3.9.1/index.html[API Reference] |
+http://docs.couchbase.com/sdk-api/couchbase-core-io-3.9.1/[Core API Reference]
+
+The supported and tested dependencies for this release are:
+
+* io.projectreactor:**reactor-core:3.6.9**
+* org.reactivestreams:**reactive-streams:1.0.4**
+
+Optional artifacts on top of this SDK version are tested for the following compatibilities:
+
+.Optional Artifact Version Compatibility
+[options="header"]
+|=======================
+| Artifact                  | Couchbase Version | Built Against              | API Stability
+| `tracing-opentelemetry`   | 3.9.1             | OpenTelemetry 1.31.0       | Committed
+| `tracing-opentracing`     | 3.9.1             | OpenTracing 0.33.0         | Committed
+| `metrics-opentelemetry`   | 3.9.1             | OpenTelemetry 1.31.0       | Volatile
+| `metrics-micrometer`      | 3.9.1             | Micrometer 1.12.9          | Volatile
+|=======================
+
+==== Improvements
+
+* https://couchbasecloud.atlassian.net/browse/JVMCBC-1677[JVMCBC-1677]:
+The BOM \(\`couchbase-client-bom\`\) now includes the \`scala-client\_3\` artifact.
+
+* https://couchbasecloud.atlassian.net/browse/JVMCBC-1678[JVMCBC-1678]:
+ Upgrade Netty to 4.1.124
+
+* https://couchbasecloud.atlassian.net/browse/JVMCBC-1680[JVMCBC-1680]:
+Retain raw JSON when parsing cluster topology
+
 === Version 3.9.0 (5 August 2025)
 
 This is the first release of the 3.9 series.