diff --git a/pentobi-20.0.tar.xz b/pentobi-20.0.tar.xz
deleted file mode 100644
index 6e700ad..0000000
--- a/pentobi-20.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:fc890dc38c201e401af8aa9c617c02eb9ff19f732af450e1293d06573dbbde87
-size 471164
diff --git a/pentobi-21.0.tar.xz b/pentobi-21.0.tar.xz
new file mode 100644
index 0000000..6a77424
--- /dev/null
+++ b/pentobi-21.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:04019e7b1ff074bb792f950f91b93e8463303e278897bd56e1073a3e85499e22
+size 471924
diff --git a/pentobi.changes b/pentobi.changes
index 9b7fff7..fa9d976 100644
--- a/pentobi.changes
+++ b/pentobi.changes
@@ -1,3 +1,18 @@
+-------------------------------------------------------------------
+Wed May 18 07:01:57 UTC 2022 - Martin Hauke <mardnh@gmx.de>
+
+- Update to version 21.0
+  * New help viewer implementation, which includes DocBook files
+    in the resources. This avoids using an external browser, which
+    did not work with all installation directories on Ubuntu 21.10
+    because Firefox and Chromium have restricted access to local
+    files, or using WebView, which is not supported on all Linux
+    architectures or in Qt 6.0/6.1.
+  * Fixed visibility of labels on Callisto 1x1-piece in dark theme.
+  * Fixed rendering issues on Android with Qt 6.3.0.
+  * Fixed detection of loaded files or autosaved games modified by
+    another application.
+
 -------------------------------------------------------------------
 Sun Jan 23 15:33:40 UTC 2022 - Martin Hauke <mardnh@gmx.de>
 
diff --git a/pentobi.spec b/pentobi.spec
index 39fea60..b428a00 100644
--- a/pentobi.spec
+++ b/pentobi.spec
@@ -17,7 +17,7 @@
 
 
 Name:           pentobi
-Version:        20.0
+Version:        21.0
 Release:        0
 Summary:        Program to play the board game Blokus
 License:        GPL-3.0-only
@@ -72,16 +72,6 @@ Pentobi game files.
 %install
 %cmake_install
 
-%if 0%{?suse_version} < 1330
-%post
-%desktop_database_post
-%icon_theme_cache_post
-
-%postun
-%desktop_database_postun
-%icon_theme_cache_postun
-%endif
-
 %files
 %license LICENSE.md
 %doc AUTHORS.md NEWS.md README.md
@@ -89,7 +79,6 @@ Pentobi game files.
 %{_datadir}/applications/io.sourceforge.pentobi.desktop
 %{_datadir}/icons/hicolor/*/*/*
 %{_datadir}/mime/packages/*.xml
-%{_datadir}/doc/pentobi/
 %{_mandir}/man6/pentobi.6%{?ext_man}
 %{_mandir}/*/man6/pentobi.6%{?ext_man}
 %{_datadir}/metainfo/io.sourceforge.pentobi.appdata.xml