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+Grammatical Framework Download and Installation
+
+
+**GF 3.9** was released on 11 August 2017.
+
+What's new? See the [Release notes release-3.9.html].
+
+
+== Binary packages ==
+
+|| Platform | Download | Features | How to install
+| macOS | [gf-3.9.pkg gf-3.9.pkg] | //GF+S+C+J+P// | Double-click on the package icon
+| macOS | [gf-3.9-bin-intel-mac.tar.gz gf-3.9-bin-intel-mac.tar.gz] | //GF+S+C+J+P// | ``sudo tar -C /usr/local -zxf gf-3.9-bin-intel-mac.tar.gz``
+%| Fedora (32-bit) | [Fedora RPMs /~hallgren/tmp/Fedora/] | //GF+S+C+J+P// | ``sudo rpm -i ...``
+| Raspian 9.1 | [gf_3.9-1_armhf.deb gf_3.9-1_armhf.deb] | //GF+S+C+J+P// | ``sudo dpkg -i gf_3.9-1_armhf.deb``
+| Ubuntu (32-bit) | [gf_3.9-1_i386.deb gf_3.9-1_i386.deb] | //GF+S+C+J+P// | ``sudo dpkg -i gf_3.9-1_i386.deb``
+| Ubuntu (64-bit) | [gf_3.9-1_amd64.deb gf_3.9-1_amd64.deb] | //GF+S+C+J+P// | ``sudo dpkg -i gf_3.9-1_amd64.deb``
+| Windows | [gf-3.9-bin-windows.zip gf-3.9-bin-windows.zip] | //GF+S// | ``unzip gf-3.9-bin-windows.zip``
+
+%| MINGW | [gf-3.9-bin-i686-MINGW32_NT-6.1.tar.gz gf-3.9-bin-i686-MINGW32_NT-6.1.tar.gz] | //GF+S+C// | ``tar -C / gf-3.9-bin-i686-MINGW32_NT-6.1.tar.gz``
+%| ... | ... | ... | ...
+
+Features: GF = GF shell and grammar compiler and the Resource Grammar Library,
+S = ``gf -server`` mode,
+C = C run-time system,
+J/P = Java/Python binding to the C run-time system
+
+%More binary packages might be added later.
+
+===Notes===
+
+The Windows package is installed by just unpacking it anywhere.
+%It finds the libraries relative to the ``.exe`` file.
+You will probably need to set the ``PATH`` and ``GF_LIB_PATH`` environment
+variables, see Inari's notes on
+[Installing GF on Windows http://www.grammaticalframework.org/~inari/gf-windows.html#toc3].
+
+%The new experimental MINGW package is for use in the
+%[MINGW http://www.mingw.org] environment in Windows. Unpack it in the MSYS shell
+%(which is started with ``C:\MinGW\msys\1.0\msys.bat``).
+%It should work out of the box without any additional settings.
+
+The Ubuntu ``.deb`` packages should work on Ubuntu 16.04 and 17.04 and similar
+Linux distributions.
+
+The Raspian ``.deb`` package was created on a Raspberry Pi 3 and will probably
+work on other ARM-based systems running Debian 9 (stretch) or similar
+Linux distributions.
+
+The packages for macOS (Mac OS X) should work on at
+least 10.11 and 10.12 (El Capitan and Sierra).
+
+%(*) **Note** that for compatibility with OS X 10.11 and newer,
+%``gf-3.9.pkg`` will install the ``gf`` executable in ``/usr/local/bin``
+%instead of ``/usr/bin``, so make sure ``/usr/local/bin`` is in your  ``$PATH``.
+%Also, if you still have an older version of GF installed in ``/usr/bin``,
+%remove it and/or make sure ``/usr/local/bin`` comes before ``/usr/bin``
+%in your ``$PATH`` so you don't accidentally run the old version.
+
+The Mac OS and Linux ``.tar.gz`` packages are designed to be installed in
+``/usr/local``.
+You can install them in other locations, but then you need to set the
+``GF_LIB_PATH`` environment variable:
+
+```
+  export GF_LIB_PATH=/usr/local/share/gf-3.9/lib
+```
+
+where ``/usr/local`` should be replaced with the path to the location where you
+unpacked the package.
+
+
+==Installing the latest release from source==
+
+[GF is on Hackage http://hackage.haskell.org/package/gf], so under normal
+circumstances the prodedure is fairly simple:
+
++ Install a recent version of the
+  [Haskell Platform http://hackage.haskell.org/platform],
+  e.g. version 7.10.3 (see note 2 below)
++ ``cabal update``
++ On Linux: install some C libraries from your Linux distribution
+  (see note 1 below)
++ ``cabal install gf``
+
+
+You can also download the full source package from here:
+[``gf-3.9.tar.gz`` gf-3.9.tar.gz].
+
+=== Notes ===
+
+The above steps installs GF for a single user.
+% and does not require root privileges.
+The executables are put in ``$HOME/.cabal/bin``
+(or, with recent versions of the Haskell platform on Mac OS X,
+in ``$HOME/Library/Haskell/bin``), so it is a good
+idea to put a line in your ``.bash_profile`` or ``.profile``
+to add that directory to you path:
+
+```
+  PATH=$HOME/.cabal/bin:$PATH
+```
+or
+```
+  PATH=$HOME/Library/Haskell/bin:$PATH
+```
+
+**Note 1**.
+GF uses [``haskeline`` http://hackage.haskell.org/package/haskeline], which
+on Linux depends on some non-Haskell libraries that
+won't be installed automatically by cabal, and therefore need to be installed
+manually. Here is one way to do this:
+
+- On Ubuntu: ``sudo apt-get install libghc-haskeline-dev``
+- On Fedora: ``sudo yum install ghc-haskeline-devel``
+
+
+**Note 2**.
+The GF source code has been updated to compile with GHC 8.2.1. Using older
+versions of GHC (e.g. 8.0.x and 7.10.3) should still work too.
+
+%=== Known problems ===
+%
+%There seems to be a bug in some versions of Cabal that can cause
+%
+%```
+%  Distribution/Simple/PackageIndex.hs:124:8-13: Assertion failed
+%```
+%
+%if the same version of GF is
+%already installed. If you encounter this, you can use ``ghc-pkg unregister gf``
+%to remove the installed version of GF and ``ghc-pkg list gf`` to verify that
+%it is gone.
+
+==Installing from the latest developer source code==
+
+The first time:
+%, assuming you already have the Haskell Platform and darcs
+
+```
+  git clone https://github.com/GrammaticalFramework/gf-core.git
+  cd gf-core
+  cabal install
+```
+
+and
+
+```
+  git clone https://github.com/GrammaticalFramework/gf-rgl.git
+  cd gf-rgl
+  make
+```
+
+Subsequently:
+
+```
+  cd gf-core
+  git pull
+  cabal install
+```
+
+and
+
+```
+  cd gf-rgl
+  git pull
+  make
+```
+
+The above notes for installing from source apply also in these cases.
+For more info on working with the GF source code, see the
+[GF Developers Guide ../doc/gf-developers.html].
+
+==Using Stack==
+
+You can also use [Stack https://www.haskellstack.org] to compile GF, just replace ``cabal install`` above
+with ``stack install`` (assuming you already have Stack set up).
+
+==Older releases==
+
+- [GF 3.8 index-3.8.html] (June 2016)
+- [GF 3.7.1 index-3.7.1.html] (October 2015)
+- [GF 3.7 index-3.7.html] (June 2015)
+- [GF 3.6 index-3.6.html] (June 2014)
+- [GF 3.5 index-3.5.html] (August 2013)
+- [GF 3.4 index-3.4.html] (January 2013).
+- [GF 3.3.3 index-3.3.3.html] (March 2012).
+- [GF 3.3 index-3.3.html] (October 2011).
+- [GF 3.2.9 index-3.2.9.html] source-only snapshot (September 2011).
+- [GF 3.2 index-3.2.html] (December 2010).
+- [GF 3.1.6 index-3.1.6.html] (April 2010).
+- [GF 3.1 old-index.html] (December 2009).