diff --git a/lxml-3.8.0.tar.gz b/lxml-3.8.0.tar.gz
deleted file mode 100644
index 49b2ae7..0000000
--- a/lxml-3.8.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:736f72be15caad8116891eb6aa4a078b590d231fdc63818c40c21624ac71db96
-size 3795205
diff --git a/lxml-4.0.0.tar.gz b/lxml-4.0.0.tar.gz
new file mode 100644
index 0000000..8d85465
--- /dev/null
+++ b/lxml-4.0.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f7bc9f702500e205b1560d620f14015fec76dcd6f9e889a946a2ddcc3c344fd0
+size 4217301
diff --git a/lxmldoc-3.8.0.pdf b/lxmldoc-3.8.0.pdf
deleted file mode 100644
index 7ed3505..0000000
--- a/lxmldoc-3.8.0.pdf
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:e342fa61e8f1467d81e3166800935e75f021edb322397d997682c3c16e222252
-size 1131272
diff --git a/lxmldoc-4.0.0.pdf b/lxmldoc-4.0.0.pdf
new file mode 100644
index 0000000..c853eb2
--- /dev/null
+++ b/lxmldoc-4.0.0.pdf
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c025f4c18aa3d6b4dd23ba034eea4170b0df26b0830df4d7e10c72fd326cff3
+size 1138534
diff --git a/python-lxml.changes b/python-lxml.changes
index 932c1b7..9580411 100644
--- a/python-lxml.changes
+++ b/python-lxml.changes
@@ -1,3 +1,54 @@
+-------------------------------------------------------------------
+Mon Sep 18 06:05:54 UTC 2017 - thomas.schraitle@suse.com
+
+- spec changes:
+  - add fdupes
+
+- update to 4.0.0:
+  Features added:
+  - The ElementPath implementation is now compiled using Cython,
+    which speeds up the .find*() methods quite significantly.
+  - The modules lxml.builder, lxml.html.diff and lxml.html.clean
+    are also compiled using Cython in order to speed them up.
+  - xmlfile() supports async coroutines using async with and await.
+  - iterwalk() has a new method skip_subtree() that prevents
+    walking into the descendants of the current element.
+  - RelaxNG.from_rnc_string() accepts a base_url argument to allow
+    relative resource lookups.
+  - The XSLT result object has a new method .write_output(file)
+    that serialises output data into a file according to the
+    <xsl:output> configuration.
+
+  Bugs fixed:
+  - GH#251: HTML comments were handled incorrectly by the
+     soupparser. Patch by mozbugbox.
+  - LP#1654544: The html5parser no longer passes the useChardet
+    option if the input is a Unicode string, unless explicitly
+    requested. When parsing files, the default is to enable it when
+    a URL or file path is passed (because the file is then opened in
+    binary mode), and to disable it when reading from a file(-like) object.
+
+    Note: This is a backwards incompatible change of the default configuration.
+    If your code parses byte strings/streams and depends on character
+    detection, please pass the option guess_charset=True explicitly, which
+    already worked in older lxml versions.
+
+  - LP#1703810: etree.fromstring() failed to parse UTF-32 data with BOM.
+  - LP#1526522: Some RelaxNG errors were not reported in the error log.
+  - LP#1567526: Empty and plain text input raised a TypeError in soupparser.
+  - LP#1710429: Uninitialised variable usage in HTML diff.
+  - LP#1415643: The closing tags context manager in xmlfile() could continue
+    to output end tags even after writing failed with an exception.
+  - LP#1465357: xmlfile.write() now accepts and ignores None as input argument.
+  - Compilation under Py3.7-pre failed due to a modified function signature.
+
+  Other changes:
+  - The main module source files were renamed from lxml.*.pyx to plain *.pyx
+    (e.g. etree.pyx) to simplify their handling in the build process. Care was
+    taken to keep the old header files as fallbacks for code that compiles
+    against the public C-API of lxml, but it might still be worth validating
+    that third-party code does not notice this change.
+
 -------------------------------------------------------------------
 Mon Sep 11 19:36:14 UTC 2017 - jengelh@inai.de
 
diff --git a/python-lxml.spec b/python-lxml.spec
index e05efd7..52dd137 100644
--- a/python-lxml.spec
+++ b/python-lxml.spec
@@ -18,7 +18,7 @@
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-lxml
-Version:        3.8.0
+Version:        4.0.0
 Release:        0
 Summary:        Pythonic XML processing library
 License:        BSD-3-Clause and GPL-2.0+
@@ -29,6 +29,7 @@ Source1:        http://lxml.de/lxmldoc-%{version}.pdf
 BuildRequires:  %{python_module Cython >= 0.22.1}
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module setuptools >= 18.0.1}
+BuildRequires:  fdupes
 BuildRequires:  libxml2-devel >= 2.7.0
 BuildRequires:  libxslt-devel >= 1.1.23
 BuildRequires:  python-rpm-macros
@@ -76,10 +77,10 @@ This package contains header files needed to use lxml's C API.
 cp %{SOURCE1} .
 
 # remove generated files
-rm src/lxml/lxml.etree.c
+# rm src/lxml/lxml.etree.c
 rm src/lxml/lxml.etree.h
 rm src/lxml/lxml.etree_api.h
-rm src/lxml/lxml.objectify.c
+# rm src/lxml/lxml.objectify.c
 
 %build
 export CFLAGS="%{optflags}"
@@ -94,6 +95,7 @@ LANG=en_US.UTF-8 PYTHONUNBUFFERED=x make test3
 
 %install
 %python_install
+%fdupes %{buildroot}
 
 %files %{python_files}
 %defattr(-,root,root)