diff --git a/history.txt b/history.txt
index fb18ce907..a244ca4c1 100644
--- a/history.txt
+++ b/history.txt
@@ -1,3 +1,9 @@
+2020-12-20 zzz
+ * SSU: Westwood+ congestion control (ticket #2427)
+
+2020-12-18 zzz
+ * Crypto: Fix use after free (ticket #2797)
+
 2020-12-17 zzz
  * SSU: Send subset of fragments (ticket #2427)
 
diff --git a/router/java/src/net/i2p/router/RouterVersion.java b/router/java/src/net/i2p/router/RouterVersion.java
index 4e28a2c8d..c10128fe6 100644
--- a/router/java/src/net/i2p/router/RouterVersion.java
+++ b/router/java/src/net/i2p/router/RouterVersion.java
@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 5;
+    public final static long BUILD = 6;
 
     /** for example "-test" */
     public final static String EXTRA = "";
diff --git a/router/java/src/net/i2p/router/transport/udp/OutboundMessageFragments.java b/router/java/src/net/i2p/router/transport/udp/OutboundMessageFragments.java
index cfce2f6fc..5eff2780c 100644
--- a/router/java/src/net/i2p/router/transport/udp/OutboundMessageFragments.java
+++ b/router/java/src/net/i2p/router/transport/udp/OutboundMessageFragments.java
@@ -104,8 +104,8 @@ class OutboundMessageFragments {
     }
 
     void dropPeer(PeerState peer) {
-        if (_log.shouldLog(Log.INFO))
-            _log.info("Dropping peer " + peer.getRemotePeer());
+        if (_log.shouldDebug())
+            _log.debug("Dropping peer " + peer.getRemotePeer());
         peer.dropOutbound();
         _activePeers.remove(peer);
     }
@@ -434,8 +434,8 @@ class OutboundMessageFragments {
             OutboundMessageState state = next.state;
             OutNetMessage msg = state.getMessage();
             int msgType = (msg != null) ? msg.getMessageTypeId() : -1;
-            if (_log.shouldLog(Log.INFO))
-                _log.info("Building packet for " + next + " to " + peer);
+            if (_log.shouldDebug())
+                _log.debug("Building packet for " + next + " to " + peer);
             int curTotalDataSize = state.fragmentSize(next.num);
             // now stuff in more fragments if they fit
             if (i +1 < toSend.size()) {
@@ -461,14 +461,13 @@ class OutboundMessageFragments {
             int before = remaining.size();
             UDPPacket pkt = _builder.buildPacket(sendNext, peer, remaining, newFullAckCount, partialACKBitfields);
             if (pkt != null) {
-                if (_log.shouldLog(Log.INFO))
-                    _log.info("Built packet with " + sendNext.size() + " fragments totalling " + curTotalDataSize +
+                if (_log.shouldDebug())
+                    _log.debug("Built packet with " + sendNext.size() + " fragments totalling " + curTotalDataSize +
                               " data bytes to " + peer);
                 _context.statManager().addRateData("udp.sendFragmentsPerPacket", sendNext.size());
-            }
-            if (pkt == null) {
+            } else {
                 if (_log.shouldLog(Log.WARN))
-                    _log.info("Build packet FAIL for " + DataHelper.toString(sendNext) + " to " + peer);
+                    _log.warn("Build packet FAIL for " + DataHelper.toString(sendNext) + " to " + peer);
                 sendNext.clear();
                 continue;
             }
@@ -503,8 +502,8 @@ class OutboundMessageFragments {
 
         int sent = rv.size();
         peer.packetsTransmitted(sent);
-        if (_log.shouldLog(Log.INFO))
-            _log.info("Sent " + fragmentsToSend + " fragments of " + states.size() +
+        if (_log.shouldDebug())
+            _log.debug("Sent " + fragmentsToSend + " fragments of " + states.size() +
                       " messages in " + sent + " packets to " + peer);
 
         return rv;
diff --git a/router/java/src/net/i2p/router/transport/udp/UDPPacketReader.java b/router/java/src/net/i2p/router/transport/udp/UDPPacketReader.java
index e0476a70a..2337d0a48 100644
--- a/router/java/src/net/i2p/router/transport/udp/UDPPacketReader.java
+++ b/router/java/src/net/i2p/router/transport/udp/UDPPacketReader.java
@@ -652,9 +652,8 @@ class UDPPacketReader {
             buf.append(" with ACKs for: [");
             int numFrags = fragmentCount();
             for (int i = 0; i < numFrags; i++) {
-                if (!received(i))
-                    buf.append('!');
-                buf.append(i).append(' ');
+                if (received(i))
+                    buf.append(i).append(' ');
             }
             buf.append("] / ").append(numFrags);
             return buf.toString();