Note dependency on released ZODB >= 4.0.0b1.

CHANGES.txt

@@ -4,6 +4,8 @@ CHANGES
 Unreleased
 ----------
 
+- Depend on ZODB >= 4.0.0b1
+
 - Added support for Python 3.2 / 3.3.
 
 4.0.0a1 (2012-11-19)

buildout.cfg

 [buildout]
 develop = .
-          ../ZODB
-#find-links =
-#    ${buildout:directory}/ZODB-4.0.0dev.tar.gz
 parts =
     test
     scripts

setup.py

@@ -94,7 +94,7 @@ setup(name="ZEO",
       tests_require = tests_require,
       extras_require = dict(test=tests_require),
       install_requires = [
-          'ZODB',
+          'ZODB >= 4.0.0b1',
           'six',
           'transaction',
           'persistent',

tox.ini

 [tox]
 envlist =
-    py26,py27,py33
+    py26,py27,py32,py33
 
 [testenv]
 commands =
     python setup.py test -q
 deps =
-    git+https://github.com/zopefoundation/ZODB.git@py3#egg=ZODB
+    ZODB >= 4.0.0b1
     random2
     ZConfig
     manuel