Release tarballs also contain the HTML and PDF versions, as well as an automatically generated API documentation.
+*NB: the user manual has not been updated yet with all the changes made in version 4. Please consider it unreliable!*
+
+Upgrading
+---------
+If you are upgrading from version 3 or earlier, please read the docs in [doc/api_changes_v4.md](doc/api_changes_v4.md)
+
License
-------
Use of this software is subject to the terms in the [license.txt](license.txt) file