Add changelog, bump version

docs/changes.rst

@@ -21,6 +21,21 @@ Hypothesis APIs come in three flavours:
 You should generally assume that an API is internal unless you have specific
 information to the contrary.
 
+-------------------
+3.17.1 - 2017-08-13
+-------------------
+
+This is a bugfix release for the :func:`~hypothesis.strategies.fractions`
+and :func:`~hypothesis.strategies.decimals` strategies.
+
+* Fixed-point decimals would often fail with healthcheck errors due to changes
+  in the underlying distribution of integers.  Calculating the correct bound
+  when none is given fixes :issue:`725`.
+* Non-integer bounds for fractions and decimals were incorrectly handled
+  when both bounds lay between two integers.  (:issue:`739`)
+* If the ``max_denominator`` argument to fractions is given but there is no
+  valid output between the bounds, InvalidArgument is raised.
+
 -------------------
 3.17.0 - 2017-08-07
 -------------------

src/hypothesis/version.py

@@ -17,5 +17,5 @@
 
 from __future__ import division, print_function, absolute_import
 
-__version_info__ = (3, 17, 0)
+__version_info__ = (3, 17, 1)
 __version__ = '.'.join(map(str, __version_info__))