diff --git a/CHANGES.rst b/CHANGES.rst
index 9aa50bf27..3fd2efa60 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Release Notes
 =============
 
+1.2.9
+-----
+
+* Add first-class support for multi-interpreter and multi-platform pex construction. (#394)
+  `#394 <https://github.com/pantsbuild/pex/pull/394>`_
+
 1.2.8
 -----
 
diff --git a/pex/version.py b/pex/version.py
index 978f66921..c338edc46 100644
--- a/pex/version.py
+++ b/pex/version.py
@@ -1,7 +1,7 @@
 # Copyright 2015 Pants project contributors (see CONTRIBUTORS.md).
 # Licensed under the Apache License, Version 2.0 (see LICENSE).
 
-__version__ = '1.2.8'
+__version__ = '1.2.9'
 
 # NB: If we upgrade to setuptools>=34 pex's bootstrap code in `PEXBuilder` will need an update to
 # include the `packaging` package in the `.bootstrap/` code since we use