diff --git a/CHANGES b/CHANGES
index b39db89bbea..dd9d9e7a056 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,14 @@ as it is included in Finagle's user's guide.
 6.x
 -----
 
+6.3.0
+~~~~~
+
+- `finagle`: Upgrade util to 6.3.0
+- `finagle-thrift`: SocketAddress when serving an iface
+- `finagle-core`: Specify DefaultTimer when creating a ChannelFactory
+- `finagle-core`: DefaultClient/Server: Do not add TracingFilter if NullTracer is used
+
 6.1.4
 ~~~~~
 
diff --git a/finagle-benchmark/pom.xml b/finagle-benchmark/pom.xml
index ad56fe7bf9a..66b097306c2 100644
--- a/finagle-benchmark/pom.xml
+++ b/finagle-benchmark/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-benchmark</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -25,17 +25,17 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-stats</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-ostrich4</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-commons-stats/pom.xml b/finagle-commons-stats/pom.xml
index ed947e818a9..70919a0d9b7 100644
--- a/finagle-commons-stats/pom.xml
+++ b/finagle-commons-stats/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-commons-stats</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -31,7 +31,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-core/pom.xml b/finagle-core/pom.xml
index 5badb6c0678..8b7fda56ad2 100644
--- a/finagle-core/pom.xml
+++ b/finagle-core/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-core</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -32,7 +32,7 @@
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-example/pom.xml b/finagle-example/pom.xml
index 0af1b1e5c4a..7523aae2993 100644
--- a/finagle-example/pom.xml
+++ b/finagle-example/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-example</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -78,52 +78,52 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-http</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-kestrel</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-memcached</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-mysql</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-ostrich4</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-redis</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-stats</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-stream</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thrift</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-exception/pom.xml b/finagle-exception/pom.xml
index 640f68a9881..53408b2b219 100644
--- a/finagle-exception/pom.xml
+++ b/finagle-exception/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-exception</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -59,12 +59,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thrift</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-exp/pom.xml b/finagle-exp/pom.xml
index 706a19a48ae..1d1f9ee603f 100644
--- a/finagle-exp/pom.xml
+++ b/finagle-exp/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-exp</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -39,12 +39,12 @@
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-http/pom.xml b/finagle-http/pom.xml
index 484ec1be2ca..94c641ca6ae 100644
--- a/finagle-http/pom.xml
+++ b/finagle-http/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-http</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -25,7 +25,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-kestrel/pom.xml b/finagle-kestrel/pom.xml
index 2c212202e8d..c3a0fb1072e 100644
--- a/finagle-kestrel/pom.xml
+++ b/finagle-kestrel/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-kestrel</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,12 +20,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-memcached</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-mdns/pom.xml b/finagle-mdns/pom.xml
index 6bbd7248e29..cd33f170055 100644
--- a/finagle-mdns/pom.xml
+++ b/finagle-mdns/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-mdns</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -25,7 +25,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>org.scalatest</groupId>
diff --git a/finagle-memcached/pom.xml b/finagle-memcached/pom.xml
index a8744103ab8..ab789e2ff7a 100644
--- a/finagle-memcached/pom.xml
+++ b/finagle-memcached/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-memcached</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,12 +20,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-serversets</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-mux/pom.xml b/finagle-mux/pom.xml
index 0929a03ef97..65d7bd2ff2d 100644
--- a/finagle-mux/pom.xml
+++ b/finagle-mux/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-mux</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,13 +20,13 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-mysql/pom.xml b/finagle-mysql/pom.xml
index 97a6d8df34b..160d018fa11 100644
--- a/finagle-mysql/pom.xml
+++ b/finagle-mysql/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-mysql</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -26,7 +26,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
   <build>
diff --git a/finagle-native/pom.xml b/finagle-native/pom.xml
index 2aec3d13a34..33ad069c5b1 100644
--- a/finagle-native/pom.xml
+++ b/finagle-native/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-native</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,12 +20,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-http</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-ostrich4/pom.xml b/finagle-ostrich4/pom.xml
index 771b1e62871..4dc8e09c8f1 100644
--- a/finagle-ostrich4/pom.xml
+++ b/finagle-ostrich4/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-ostrich4</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,12 +20,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-http</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-redis/pom.xml b/finagle-redis/pom.xml
index bc4e41e1b90..2ac4d3eff88 100644
--- a/finagle-redis/pom.xml
+++ b/finagle-redis/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-redis</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -20,7 +20,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-serversets/pom.xml b/finagle-serversets/pom.xml
index b008df83800..f529af6f44a 100644
--- a/finagle-serversets/pom.xml
+++ b/finagle-serversets/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-serversets</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -75,7 +75,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-spdy/pom.xml b/finagle-spdy/pom.xml
index db756e66a7f..99df4622fd1 100644
--- a/finagle-spdy/pom.xml
+++ b/finagle-spdy/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-spdy</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -19,7 +19,7 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-stats/pom.xml b/finagle-stats/pom.xml
index 014a5c35140..59773751220 100644
--- a/finagle-stats/pom.xml
+++ b/finagle-stats/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-stats</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -28,12 +28,12 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-http</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-stream/pom.xml b/finagle-stream/pom.xml
index 64bab17a97a..e43d7982e4b 100644
--- a/finagle-stream/pom.xml
+++ b/finagle-stream/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-stream</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -21,17 +21,17 @@
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-kestrel</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
 </project>
diff --git a/finagle-stress/pom.xml b/finagle-stress/pom.xml
index 1d4b3ce6965..6013b0d00e1 100644
--- a/finagle-stress/pom.xml
+++ b/finagle-stress/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-stress</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>service-292</artifactId>
@@ -37,27 +37,27 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-http</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-ostrich4</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thriftmux</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thrift</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-test/pom.xml b/finagle-test/pom.xml
index d9a63300b81..c917a5b1e5a 100644
--- a/finagle-test/pom.xml
+++ b/finagle-test/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-test</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
diff --git a/finagle-thrift/pom.xml b/finagle-thrift/pom.xml
index 18b13211bd0..7718a035edc 100644
--- a/finagle-thrift/pom.xml
+++ b/finagle-thrift/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-thrift</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -49,13 +49,13 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
   </dependencies>
   <!--	Uncomment the following to regenerate thrift code.
diff --git a/finagle-thriftmux/pom.xml b/finagle-thriftmux/pom.xml
index 4127b98801c..29a4dd4abf2 100644
--- a/finagle-thriftmux/pom.xml
+++ b/finagle-thriftmux/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-thriftmux</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -37,28 +37,28 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-mux</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thrift</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-ostrich4</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/finagle-zipkin/pom.xml b/finagle-zipkin/pom.xml
index 592273abcf9..1b24c6b8b4a 100644
--- a/finagle-zipkin/pom.xml
+++ b/finagle-zipkin/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle-zipkin</artifactId>
   <packaging>jar</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <parent>
     <groupId>com.twitter</groupId>
     <artifactId>scala-parent-292</artifactId>
@@ -37,18 +37,18 @@
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-core</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-test</artifactId>
       <scope>test</scope>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
       <artifactId>finagle-thrift</artifactId>
-      <version>6.1.5-SNAPSHOT</version>
+      <version>6.3.1-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.twitter</groupId>
diff --git a/pom.xml b/pom.xml
index f76a66541db..7a1fb17820f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.twitter</groupId>
   <artifactId>finagle</artifactId>
   <packaging>pom</packaging>
-  <version>6.1.5-SNAPSHOT</version>
+  <version>6.3.1-SNAPSHOT</version>
   <distributionManagement>
     <repository>
       <id>artifactory-release</id>