diff --git a/CHANGES.txt b/CHANGES.txt
index af40ffb7da..1fa755f84d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,5 +1,12 @@
 -- Version history --
 
+4.6.3
+      1. Fixed crash of BSS in MetaQUAST mode (introduced in v4.6.2).
+
+      2. Proper float/integer division in both Python2 and Python3 (
+         affected the number of scaffold gap size misassemblies in Python2).
+
+
 4.6.2
       1. Fixed relatively rare bug of BSS when using large --min-alignment.
 
diff --git a/VERSION.txt b/VERSION.txt
index c78c4964ca..83da99bc61 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-4.6.2
+4.6.3
diff --git a/manual.html b/manual.html
index 13d7532340..b15d2aa14a 100644
--- a/manual.html
+++ b/manual.html
@@ -1,6 +1,6 @@
 <html>
 <head>
-    <title>QUAST 4.6.2 manual</title>
+    <title>QUAST 4.6.3 manual</title>
     <style type="text/css">
         body {
             margin-top: 30px;
@@ -66,7 +66,7 @@
     </style>
 </head>
 <body>
-<h1>QUAST 4.6.2 manual</h1>
+<h1>QUAST 4.6.3 manual</h1>
 
 <p> QUAST stands for <u>QU</u>ality <u>AS</u>sessment <u>T</u>ool.
     The tool evaluates genome assemblies by computing various metrics. This document provides instructions
@@ -99,7 +99,7 @@ <h1>QUAST 4.6.2 manual</h1>
     for guidelines on how to complete the licensing process.
     <br>
     <br>
-    Version 4.6.2 of QUAST was released under GPL v2 on 26 January 2018. Note that some of build-in third-party tools are not under GPL v2. See <a href="LICENSE.txt">LICENSE</a> for details.
+    Version 4.6.3 of QUAST was released under GPL v2 on 6 February 2018. Note that some of build-in third-party tools are not under GPL v2. See <a href="LICENSE.txt">LICENSE</a> for details.
 </p>
 
 <h2>Contents</h2>
@@ -169,11 +169,11 @@ <h2>1. Installation</h2>
     sudo apt-get install -y pkg-config libfreetype6-dev libpng-dev python-matplotlib
 </pre>
 <br>
-To download the <a href="https://downloads.sourceforge.net/project/quast/quast-4.6.2.tar.gz">QUAST source code tarball</a> and extract it, type:
+To download the <a href="https://downloads.sourceforge.net/project/quast/quast-4.6.3.tar.gz">QUAST source code tarball</a> and extract it, type:
 <pre class="code">
-    wget https://downloads.sourceforge.net/project/quast/quast-4.6.2.tar.gz
-    tar -xzf quast-4.6.2.tar.gz
-    cd quast-4.6.2
+    wget https://downloads.sourceforge.net/project/quast/quast-4.6.3.tar.gz
+    tar -xzf quast-4.6.3.tar.gz
+    cd quast-4.6.3
 </pre>
 
 <br>
