diff --git a/CHANGES.rst b/CHANGES.rst
index 567697b15..d6e116021 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -20,8 +20,8 @@ Release History
    - Fixed
 
 
-0.6.0 (unreleased)
-==================
+0.6.0 (September 17, 2018)
+==========================
 
 **Added**
 
@@ -60,11 +60,13 @@ Release History
 
 - A number of module names have been changed for better naming consistency.
   In particular,
+
   - ``nengo_spa.actions`` to ``nengo_spa.action_selection``,
   - ``nengo_spa.pointer`` to ``nengo_spa.semantic_pointer``,
   - ``nengo_spa.vocab`` to ``nengo_spa.vocabulary``,
   - and ``nengo_spa.modules.assoc_mem`` to
     ``nengo_spa.modules.associative_memory``.
+
   (`#199 <https://github.com/nengo/nengo_spa/issues/199>`_,
   `#205 <https://github.com/nengo/nengo_spa/pull/205>`_)
 - Require the ``mapping`` argument for associative memories. In addition to
diff --git a/nengo_spa/version.py b/nengo_spa/version.py
index 78d2f4d96..0ae1a54fc 100644
--- a/nengo_spa/version.py
+++ b/nengo_spa/version.py
@@ -8,7 +8,7 @@
 
 name = "nengo_spa"
 version_info = (0, 6, 0)  # (major, minor, patch)
-dev = 0
+dev = None
 
 version = "{v}{dev}".format(v=".".join(str(v) for v in version_info),
                             dev="" if dev is None else ".dev{:d}".format(dev))