diff --git a/CHANGELOG.md b/CHANGELOG.md
index 271a90381..2e2140ee8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,10 @@
 Changes by Version
 ==================
 
-0.30.7 (unreleased)
+0.31.0 (2018-08-28)
 -------------------
 
- - Nothing yet 
+- Support `jaeger-baggage` header for ad-hoc baggage ([#525](https://github.com/jaegertracing/jaeger-client-java/pull/525), [@yurishkuro](https://github.com/yurishkuro))
 
 0.30.6 (2018-08-23)
 -------------------
diff --git a/build.gradle b/build.gradle
index 55763cffe..2cd9d9da8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -15,7 +15,7 @@ plugins {
     id 'com.github.ben-manes.versions' version '0.17.0'
 }
 
-ext.developmentVersion = getProperty('developmentVersion','0.30.7-SNAPSHOT')
+ext.developmentVersion = getProperty('developmentVersion','0.31.0')
 
 ext.opentracingVersion = getProperty('opentracingVersion','0.31.0')
 ext.guavaVersion = getProperty('guavaVersion','18.0')