diff --git a/.github/workflows/buildwheel.yml b/.github/workflows/buildwheel.yml
@@ -57,6 +57,25 @@ jobs:
         with:
           path: wheelhouse/*.whl
 
+  build_sdist:
+    name: Build sdist
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v3
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.11'
+
+      - run: pip install --upgrade pip
+      - run: pip install cython numpy
+      - run: python setup.py sdist
+
+      - uses: actions/upload-artifact@v3
+        with:
+          path: dist/*.tar.gz
+
   test_wheels:
     needs: build_wheels
     name: Test ${{ matrix.python-version }} wheel on ${{ matrix.os }}

diff --git a/.travis.yml b/.travis.yml
diff --git a/README.md b/README.md
@@ -11,24 +11,32 @@ and Arb (arbitrary-precision ball arithmetic). Features:
 
 Documentation: http://fredrikj.net/python-flint/
 
-Repository: https://github.com/fredrik-johansson/python-flint/
+Repository: https://github.com/flintlib/python-flint/
 
 Author: Fredrik Johansson <fredrik.johansson@gmail.com>
 
 Installation
 ------------
 
-On Windows (x86-64) or OSX (x86-64 or arm64) there are prebuilt wheels for
-python-flint 0.4.1 that can be installed from PyPI using pip
+For Windows (x86-64) or OSX (x86-64 or arm64) or Linux (x86-64
+`manylinux_2_17`) there are binary wheels for python-flint on PyPI. For these
+platforms python-flint can be installed simply with `pip`
 
     pip install python-flint
 
-There is currently a problem with the Linux wheels and so for now Linux wheels
-are not available on PyPI. Instead for Linux first install both FLINT 2.9.0 and
-Arb 2.23. Note that as of python-flint 0.4.1 only these *exact* versions of
-FLINT and Arb will work. While some Linux distributions may provide FLINT and
-Arb it is unlikely that they will provide the exact versions required (e.g.
-for Ubuntu only Ubuntu 23.04 provides these versions at the time of writing).
+Alternatively python-flint can be installed using `conda`
+
+    conda install -c conda-forge python-flint
+
+Build from source
+-----------------
+
+For other platforms or architectures installation needs to build from source.
+First install both FLINT 2.9.0 and Arb 2.23. Note that for python-flint 0.4
+only these *exact* versions of FLINT and Arb will work. While some Linux
+distributions may provide FLINT and Arb it is unlikely that they will provide
+the exact versions required (e.g. for Ubuntu only Ubuntu 23.04 provides these
+versions at the time of writing).
 
 See here for instructions on building FLINT and Arb:
 
@@ -49,7 +57,7 @@ as follows:
 A script that builds and installs FLINT, Arb and Python-FLINT that is tested on
 Ubuntu can be found in the git repo here:
 
-* https://github.com/fredrik-johansson/python-flint/blob/master/bin/pip_install_ubuntu.sh
+* https://github.com/flintlib/python-flint/blob/master/bin/pip_install_ubuntu.sh
 
 See the documentation for further notes on building and installing
 Python-FLINT:

diff --git a/bin/build_mingw64_wheel.sh b/bin/build_mingw64_wheel.sh
@@ -11,7 +11,7 @@
 #
 # - Then checkout the code:
 #
-#       $ git clone https://github.com/fredrik-johansson/python-flint/issues/1
+#       $ git clone https://github.com/flintlib/python-flint.git
 #
 # - Then install msys2
 #
@@ -44,7 +44,7 @@ fi
 PYTHON=$PYTHONDIR/python
 VER="${PYTHONVER//./}"
 
-WHEELNAME=python_flint-0.4.1-cp$VER-cp$VER-win_amd64.whl
+WHEELNAME=python_flint-0.4.2-cp$VER-cp$VER-win_amd64.whl
 
 $PYTHON -c 'print("hello world")'
 
@@ -90,7 +90,7 @@ wheel pack python_flint-*
 cd ..
 
 # Make the wheel relocatable
-delvewheel repair dist/python_flint-0.4.1-cp$VER-cp$VER-win_amd64.whl \
+delvewheel repair dist/python_flint-0.4.2-cp$VER-cp$VER-win_amd64.whl \
         --add-path .local/bin:.local/lib/
 
 # Make a virtual enironment to test the wheel

diff --git a/bin/pip_install_ubuntu.sh b/bin/pip_install_ubuntu.sh
@@ -4,7 +4,7 @@ set -o errexit
 
 # This script should work to install python-flint on Ubuntu from a VCS checkout
 #
-#  $ git checkout https://github.com/fredrik-johansson/python-flint.git
+#  $ git checkout https://github.com/flintlib/python-flint.git
 #  $ bin/pip_install_ubuntu.sh .
 #
 # To install an sdist from PyPI, use
@@ -18,12 +18,12 @@ set -o errexit
 # system installation of Flint and Arb in Ubuntu.
 #
 # Ubuntu 23.04 has Flint 2.9.0 and Arb 2.23.0, so this script might work there
-# (for python-flint 0.4.1). That is untested though (23.04 not available in CI).
+# (for python-flint 0.4.x). That is untested though (23.04 not available in CI).
 #
 # With Ubuntu 22.04, this will build but then crashes when running the tests.
 # most likely this is because the versions of flint and flint-arb are too old.
 # At the time of writing in Ubuntu 22.04 there is Flint 2.8.4 and Arb 2.22. The
-# main CI tests and wheels for python-flint 0.4.1 are built with Flint 2.9.0
+# main CI tests and wheels for python-flint 0.4.x are built with Flint 2.9.0
 # and Arb 2.23.0.
 #
 # Link against libflint-arb instead of libarb on Ubuntu

diff --git a/doc/source/conf.py b/doc/source/conf.py
@@ -51,9 +51,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '0.4.1'
+version = '0.4.2'
 # The full version, including alpha/beta/rc tags.
-release = '0.4.1'
+release = '0.4.2'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

diff --git a/doc/source/index.rst b/doc/source/index.rst
@@ -20,7 +20,7 @@ and Arb_ (arbitrary-precision ball arithmetic). Features:
 
 Author: `Fredrik Johansson <http://fredrikj.net/>`_ <fredrik.johansson@gmail.com>
 
-Repository: https://github.com/fredrik-johansson/python-flint/
+Repository: https://github.com/flintlib/python-flint/
 
 Introduction
 ------------

diff --git a/setup.py b/setup.py
@@ -86,8 +86,8 @@
     description='Bindings for FLINT and Arb',
     long_description=open('README.md').read(),
     long_description_content_type='text/markdown',
-    version='0.4.1',
-    url='https://github.com/python-flint/python-flint',
+    version='0.4.2',
+    url='https://github.com/flintlib/python-flint',
     author='Fredrik Johansson',
     author_email='fredrik.johansson@gmail.com',
     license='MIT',

diff --git a/src/flint/__init__.py b/src/flint/__init__.py
@@ -1,3 +1,3 @@
 from ._flint import *
 
-__version__ = '0.4.1'
+__version__ = '0.4.2'
diff --git a/src/flint/test/test.py b/src/flint/test/test.py
@@ -30,7 +30,7 @@ def raises(f, exception):
 
 def test_pyflint():
 
-    assert flint.__version__ == "0.4.1"
+    assert flint.__version__ == "0.4.2"
 
     ctx = flint.ctx
     assert str(ctx) == repr(ctx) == _default_ctx_string