diff --git a/apps/streaming/java/src/net/i2p/client/streaming/impl/Connection.java b/apps/streaming/java/src/net/i2p/client/streaming/impl/Connection.java
index c001d2d4e7..151ce2399a 100644
--- a/apps/streaming/java/src/net/i2p/client/streaming/impl/Connection.java
+++ b/apps/streaming/java/src/net/i2p/client/streaming/impl/Connection.java
@@ -1458,7 +1458,8 @@ class Connection {
 
         public synchronized void pushBackRTO(int rto) {
             if (!_scheduled) {
-                _log.log(Log.ERROR, Connection.this + " timer was not scheduled", new Exception());
+                if (_log.shouldWarn())
+                    _log.warn(Connection.this + " timer was not scheduled", new Exception());
             }
             reschedule(rto, false);
         }
diff --git a/history.txt b/history.txt
index c6e4f6a281..c073022edc 100644
--- a/history.txt
+++ b/history.txt
@@ -1,3 +1,6 @@
+2020-05-14 zzz
+ * Streaming: Change pushBackRTO() log error to warn (ticket #2739)
+
 2020-05-13 zzz
  * Console:
    - Fix option text on /confignet (ticket #2738)
diff --git a/router/java/src/net/i2p/router/RouterVersion.java b/router/java/src/net/i2p/router/RouterVersion.java
index f5c9264549..601535dbe6 100644
--- a/router/java/src/net/i2p/router/RouterVersion.java
+++ b/router/java/src/net/i2p/router/RouterVersion.java
@@ -18,10 +18,10 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 20;
+    public final static long BUILD = 21;
 
     /** for example "-test" */
-    public final static String EXTRA = "";
+    public final static String EXTRA = "-rc";
     public final static String FULL_VERSION = VERSION + "-" + BUILD + EXTRA;
     public static void main(String args[]) {
         System.out.println("I2P Router version: " + FULL_VERSION);