add change log for 0.9.0

Author: molpopgen

doc/index.rst

@@ -32,6 +32,7 @@ Welcome to fwdpp's documentation!
 .. toctree::
    :caption: Technical documentation
 
+   rst/changelog
    rst/develpersguide
 
 

doc/rst/changelog.rst

@@ -0,0 +1,21 @@
+.. _changelog:
+
+Change log
+=============================================
+
+0.9.0
+********************************************
+
+This is a pretty big release.
+In fact, it is too big to list all of the changes here.
+They are collected on GitHub under the ``0.9.0`` milestone.
+
+Importantly, this release deprecates several features.
+Where possible, a ``C++14``-style ``[[deprecated]]`` marker is used.
+
+We plan to start releasing more often, so that individual releases aren't so big.
+
+In future releases, we plan to improve the organization of the library headers.
+We will also clean up the test suite to reflect the new layout.
+We will keep the existing headers and use the preprocessor to emit a warning at compile time.
+