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+    <link rel="search" title="Search" href="../search.html" />
+    <link rel="next" title="impy.frame package" href="impy.frame.html" />
+    <link rel="prev" title="impy.arrays package" href="impy.arrays.html" /> 
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+    <link rel="search" title="Search" href="../search.html" />
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-          <footer>
+          <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
+        <a href="impy.html" class="btn btn-neutral float-left" title="impy package" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+        <a href="impy.arrays.bases.html" class="btn btn-neutral float-right" title="impy.arrays.bases package" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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-    <link rel="search" title="Search" href="../search.html" /> 
+    <link rel="search" title="Search" href="../search.html" />
+    <link rel="next" title="impy.utils package" href="impy.utils.html" />
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+          <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
+        <a href="impy.arrays.bases.html" class="btn btn-neutral float-left" title="impy.arrays.bases package" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+        <a href="impy.utils.html" class="btn btn-neutral float-right" title="impy.utils package" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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-    <link rel="search" title="Search" href="../search.html" /> 
+    <link rel="search" title="Search" href="../search.html" />
+    <link rel="next" title="impy.arrays package" href="impy.arrays.html" />
+    <link rel="prev" title="API References" href="../api.html" /> 
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-          <footer>
+          <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
+        <a href="../api.html" class="btn btn-neutral float-left" title="API References" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+        <a href="impy.arrays.html" class="btn btn-neutral float-right" title="impy.arrays package" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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-    <link rel="search" title="Search" href="../search.html" /> 
+    <link rel="search" title="Search" href="../search.html" />
+    <link rel="next" title="impy.viewer package" href="impy.viewer.html" />
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-          <footer>
+          <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
+        <a href="impy.frame.html" class="btn btn-neutral float-left" title="impy.frame package" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
+        <a href="impy.viewer.html" class="btn btn-neutral float-right" title="impy.viewer package" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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-    <link rel="search" title="Search" href="../search.html" /> 
+    <link rel="search" title="Search" href="../search.html" />
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-          <footer>
+          <footer><div class="rst-footer-buttons" role="navigation" aria-label="Footer">
+        <a href="impy.utils.html" class="btn btn-neutral float-left" title="impy.utils package" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left" aria-hidden="true"></span> Previous</a>
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diff --git a/docs/py-modindex.html b/docs/py-modindex.html
index 84081be3..8abfe72a 100644
--- a/docs/py-modindex.html
+++ b/docs/py-modindex.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Python Module Index &mdash; impy 2.0.0.alpha documentation</title>
+  <title>Python Module Index &mdash; impy 2.0.0 documentation</title>
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@@ -30,7 +30,7 @@
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+                2.0.0
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diff --git a/docs/search.html b/docs/search.html
index 0aba4927..fa65e67f 100644
--- a/docs/search.html
+++ b/docs/search.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Search &mdash; impy 2.0.0.alpha documentation</title>
+  <title>Search &mdash; impy 2.0.0 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
     
@@ -30,7 +30,7 @@
             <a href="index.html" class="icon icon-home"> impy
           </a>
               <div class="version">
-                2.0.0.alpha
+                2.0.0
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diff --git a/docs/tutorial.html b/docs/tutorial.html
index 9d3aefcb..d0e6c505 100644
--- a/docs/tutorial.html
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@@ -4,7 +4,7 @@
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Tutorial &mdash; impy 2.0.0.alpha documentation</title>
+  <title>Tutorial &mdash; impy 2.0.0 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
   <!--[if lt IE 9]>
@@ -30,7 +30,7 @@
             <a href="index.html" class="icon icon-home"> impy
           </a>
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-                2.0.0.alpha
+                2.0.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
diff --git a/docs/tutorial_cmd.html b/docs/tutorial_cmd.html
index 0257831e..442f2e1c 100644
--- a/docs/tutorial_cmd.html
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Command Line Usage &mdash; impy 2.0.0.alpha documentation</title>
+  <title>Command Line Usage &mdash; impy 2.0.0 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
   <!--[if lt IE 9]>
@@ -30,7 +30,7 @@
             <a href="index.html" class="icon icon-home"> impy
           </a>
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-                2.0.0.alpha
+                2.0.0
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
diff --git a/impy/__init__.py b/impy/__init__.py
index 76e82db2..0bb1dc63 100644
--- a/impy/__init__.py
+++ b/impy/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.0.0.alpha"
+__version__ = "2.0.0"
 __author__ = "Hanjin Liu"
 __email__ = "liuhanjin-sc@g.ecc.u-tokyo.ac.jp"
 
