diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9ab815..4a1d4a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## Version 1.39.0 (2026-01-28)
 
 ## Version 1.39.0 (2026-01-28)
 
diff --git a/build.gradle.kts b/build.gradle.kts
index 93a8e72..1333f54 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
 }
 
 // start - updated by ./.github/workflows/prepare-release-branch.yml
-val snapshot = true
+val snapshot = false
 // end
 
 // The release version of https://github.com/open-telemetry/semantic-conventions used to generate classes
diff --git a/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt b/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt
index f9df3b7..f0fcfe1 100644
--- a/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt
+++ b/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt
@@ -1,4 +1,4 @@
-Comparing source compatibility of opentelemetry-semconv-1.39.0-SNAPSHOT.jar against opentelemetry-semconv-1.38.0.jar
+Comparing source compatibility of opentelemetry-semconv-1.39.0.jar against opentelemetry-semconv-1.38.0.jar
 ***  MODIFIED CLASS: PUBLIC FINAL io.opentelemetry.semconv.SchemaUrls  (not serializable)
 	===  CLASS FILE FORMAT VERSION: 52.0 <- 52.0
 	+++  NEW FIELD: PUBLIC(+) STATIC(+) FINAL(+) java.lang.String V1_39_0