diff --git a/download.html b/download.html
index 3b4de4ff4..89950f2dc 100644
--- a/download.html
+++ b/download.html
@@ -14,15 +14,15 @@
 
 <p>Remember <em>youtube-dl</em> requires <a href="http://www.python.org/">Python</a> version 2.6, 2.7, or 3.2+ to work except for Windows exe.</p>
 
-<p><a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl.exe">Windows exe</a> requires <a href="https://www.microsoft.com/en-US/download/details.aspx?id=5555">Microsoft Visual C++ 2010 Redistributable Package (x86)</a> and does not require Python that is already embedded into the binary.</p>
+<p><a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl.exe">Windows exe</a> requires <a href="https://www.microsoft.com/en-US/download/details.aspx?id=5555">Microsoft Visual C++ 2010 Redistributable Package (x86)</a> and does not require Python that is already embedded into the binary.</p>
 
-<h2><a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl">2020.12.29</a> (<a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl.sig">sig</a>)</h2>
+<h2><a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl">2020.12.31</a> (<a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl.sig">sig</a>)</h2>
 
-<p><strong>SHA256</strong>: e1c503b74882e118fa47a8452af3b86b5e12a3fdb03cb9d95bc3d943bc207395</p>
+<p><strong>SHA256</strong>: cf59f6a75726ed262eb6dc93e00731fa7ce9eb54e28d698847406b26b731dc10</p>
 
 <p>
-	<a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl.exe">Windows exe</a> (<a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl.exe.sig">sig</a> - SHA256 f29ad53c8b9b9a31568c01da4a25bf9521b8f618645cab428f339e26e0211734)<br>
-	<a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl-2020.12.29.tar.gz">Full source + docs + binary tarball</a> (<a href="https://yt-dl.org/downloads/2020.12.29/youtube-dl-2020.12.29.tar.gz.sig">sig</a> - SHA256 6b2dbadb044f8673ce5afb1a0d50a01e4ab1562cf46b7c1d3557b3615c1d99c1)
+	<a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl.exe">Windows exe</a> (<a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl.exe.sig">sig</a> - SHA256 72ed177d7e59a6f91de6dc554eb37e4f2aad8651e74b50ccdb990a2f9750c093)<br>
+	<a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl-2020.12.31.tar.gz">Full source + docs + binary tarball</a> (<a href="https://yt-dl.org/downloads/2020.12.31/youtube-dl-2020.12.31.tar.gz.sig">sig</a> - SHA256 094ef8b000a9e9fcaf624eb316ac8d52643224604fdf841a14aa69a5fe9f9859)
 </p>
 
 <p>To install it right away for all UNIX users (Linux, OS X, etc.), type:
diff --git a/supportedsites.html b/supportedsites.html
index b94706038..71b446289 100644
--- a/supportedsites.html
+++ b/supportedsites.html
@@ -119,6 +119,7 @@
 	<li><b>BilibiliAudioAlbum</b></li>
 	<li><b>BiliBiliPlayer</b></li>
 	<li><b>BioBioChileTV</b></li>
+	<li><b>Biography</b></li>
 	<li><b>BIQLE</b></li>
 	<li><b>BitChute</b></li>
 	<li><b>BitChuteChannel</b></li>
@@ -212,7 +213,6 @@
 	<li><b>CrooksAndLiars</b></li>
 	<li><b>crunchyroll</b></li>
 	<li><b>crunchyroll:playlist</b></li>
-	<li><b>CSNNE</b></li>
 	<li><b>CSpan</b>: C-SPAN</li>
 	<li><b>CtsNews</b>: 華視新聞</li>
 	<li><b>CTV</b></li>
@@ -364,6 +364,7 @@
 	<li><b>hgtv.com:show</b></li>
 	<li><b>HiDive</b></li>
 	<li><b>HistoricFilms</b></li>
+	<li><b>history:player</b></li>
 	<li><b>history:topic</b>: History.com Topic</li>
 	<li><b>hitbox</b></li>
 	<li><b>hitbox:live</b></li>
@@ -1103,6 +1104,7 @@
 	<li><b>vube</b>: Vube.com</li>
 	<li><b>VuClip</b></li>
 	<li><b>VVVVID</b></li>
+	<li><b>VVVVIDShow</b></li>
 	<li><b>VyboryMos</b></li>
 	<li><b>Vzaar</b></li>
 	<li><b>Wakanim</b></li>
diff --git a/update/LATEST_VERSION b/update/LATEST_VERSION
index eaaab0eb5..1f7f8fc11 100644
--- a/update/LATEST_VERSION
+++ b/update/LATEST_VERSION
@@ -1 +1 @@
-2020.12.29
\ No newline at end of file
+2020.12.31
\ No newline at end of file
diff --git a/update/releases.atom b/update/releases.atom
index 37e3ba184..b18c7b2cc 100644
--- a/update/releases.atom
+++ b/update/releases.atom
@@ -3,7 +3,7 @@
     <link rel="self" href="http://ytdl-org.github.io/youtube-dl/update/releases.atom" />
     <title>youtube-dl releases</title>
     <id>https://yt-dl.org/feed/youtube-dl-updates-feed</id>
-    <updated>2020-12-29T02:55:20.876081Z</updated>
+    <updated>2020-12-31T05:19:40.520055Z</updated>
     
 	<entry>
 	    <id>https://yt-dl.org/feed/youtube-dl-updates-feed/youtube-dl-2012.02.22</id>
@@ -14375,4 +14375,19 @@
 	    <updated>2020-12-29T00:00:00Z</updated>
 	</entry>
 
+	<entry>
+	    <id>https://yt-dl.org/feed/youtube-dl-updates-feed/youtube-dl-2020.12.31</id>
+	    <title>New version 2020.12.31</title>
+	    <link href="http://ytdl-org.github.io/youtube-dl" />
+	    <content type="xhtml">
+	        <div xmlns="http://www.w3.org/1999/xhtml">
+	            Downloads available at <a href="https://yt-dl.org/downloads/2020.12.31/">https://yt-dl.org/downloads/2020.12.31/</a>
+	        </div>
+	    </content>
+	    <author>
+	        <name>The youtube-dl maintainers</name>
+	    </author>
+	    <updated>2020-12-31T00:00:00Z</updated>
+	</entry>
+
 </feed>
\ No newline at end of file
diff --git a/update/versions.json b/update/versions.json
index a2bcba45d..58c1b4e5c 100644
--- a/update/versions.json
+++ b/update/versions.json
@@ -1,6 +1,6 @@
 {
-    "latest": "2020.12.29",
-    "signature": "0992ecd5a05aa326adc939e19dcd86fc1e622486cab5e4101aef78b071e41a04aca42180c8c473b62db58b2d268ba2fb7fa1f1111ac5fea4dbde42b837d5589ac82bba4c8d26b6e2623ab5ef8da75edcc78caf9b942f6c51be4abd1431389330b58836b81761507ad4e0df91958f94ffe6dcb59bfddf9f9b1c7e356a05a50b7e",
+    "latest": "2020.12.31",
+    "signature": "3c1f202890997b20e960e610b1a68c3f273edb6502025d06829e89a025eb739c8f160ae704634710ce60a20e3b57d209f63b0993a7c73d063742be013df1ce888864e0e8406078a0d02d51d0227c30f3cde4d4034fe4edec2a14a4a70851be0f1ea6141c19ac378b2862164ff7191cfe3da73ede4f991d96ad39c850752e8b51",
     "versions": {
         "2012.02.22": {
             "bin": [
@@ -13419,6 +13419,20 @@
                 "https://yt-dl.org/downloads/2020.12.29/youtube-dl-2020.12.29.tar.gz",
                 "6b2dbadb044f8673ce5afb1a0d50a01e4ab1562cf46b7c1d3557b3615c1d99c1"
             ]
+        },
+        "2020.12.31": {
+            "bin": [
+                "https://yt-dl.org/downloads/2020.12.31/youtube-dl",
+                "cf59f6a75726ed262eb6dc93e00731fa7ce9eb54e28d698847406b26b731dc10"
+            ],
+            "exe": [
+                "https://yt-dl.org/downloads/2020.12.31/youtube-dl.exe",
+                "72ed177d7e59a6f91de6dc554eb37e4f2aad8651e74b50ccdb990a2f9750c093"
+            ],
+            "tar": [
+                "https://yt-dl.org/downloads/2020.12.31/youtube-dl-2020.12.31.tar.gz",
+                "094ef8b000a9e9fcaf624eb316ac8d52643224604fdf841a14aa69a5fe9f9859"
+            ]
         }
     }
 }
\ No newline at end of file