--- a/ChangeLog
+++ b/ChangeLog
@@ -2,7 +2,8 @@
 (?, from 0.6.x branch)
 http://svn.edgewall.org/repos/bitten/tags/0.6.0
 
- * Python 2.4 is now required.
+ * Python 2.4 is now required for slave, while master should still work using
+   Python 2.3 (as is also Trac 0.11 minimum).
  * Switch to using HTTP for communication between the build master and build
    slaves. This means the `build-master` executable is no longer needed or
    installed, the build simply runs in the scope of the Trac site.
@@ -12,6 +13,8 @@
    instructions in the build recipe.
  * Many fixes for compatibility with more recent versions of Trac, and Bitten
    now requires Trac 0.11.
+ * The administration interface is now properly integrated with the Trac web
+   administration component.
  * Unicode (non-ascii) support for recipes and command-line input and output.
  * Improved authentication support in bitten-slave, including support for the
    popular AccountManager plugin.

--- a/README.txt
+++ b/README.txt
@@ -23,7 +23,8 @@
 ------------
 
 Bitten is written in Python, so make sure that you have Python installed.
-You'll need Python 2.4 or later. Also, make sure that setuptools
+You'll need Python 2.4 or later for running build slave, while the Trac plugin
+(master) should still work using Python 2.3. Also, make sure that setuptools
 (http://peak.telecommunity.com/DevCenter/setuptools), version 0.6a2 or later,
 is installed.
 

--- a/bitten/__init__.py
+++ b/bitten/__init__.py
@@ -17,3 +17,6 @@
                                                     'Bitten-Slave').version
     except:
         pass
+
+# The master-slave protocol/configuration version
+PROTOCOL_VERSION = 2

--- a/bitten/master.py
+++ b/bitten/master.py
@@ -21,13 +21,13 @@
 from trac.resource import ResourceNotFound
 from trac.web import IRequestHandler, RequestDone
 
+from bitten import PROTOCOL_VERSION
 from bitten.model import BuildConfig, Build, BuildStep, BuildLog, Report, \
                      TargetPlatform
 
 from bitten.main import BuildSystem
 from bitten.queue import BuildQueue
 from bitten.recipe import Recipe
-from bitten.slave import PROTOCOL_VERSION
 from bitten.util import xmlio
 
 __all__ = ['BuildMaster']

--- a/bitten/slave.py
+++ b/bitten/slave.py
@@ -10,9 +10,6 @@
 
 """Implementation of the build slave."""
 
-import sys
-assert sys.version_info[:2] >= (2,4), "Python 2.4 required."
-
 from datetime import datetime
 import errno
 import urllib
@@ -22,19 +19,18 @@
 import platform
 import shutil
 import socket
+import sys
 import tempfile
 import time
 import re
 import cookielib
 
+from bitten import PROTOCOL_VERSION
 from bitten.build import BuildError
 from bitten.build.config import Configuration
 from bitten.recipe import Recipe
 from bitten.util import xmlio
 
-# The master-slave protocol/configuration version
-PROTOCOL_VERSION = 2
-
 EX_OK = getattr(os, "EX_OK", 0)
 EX_UNAVAILABLE = getattr(os, "EX_UNAVAILABLE", 69)
 EX_PROTOCOL = getattr(os, "EX_PROTOCOL", 76)

--- a/bitten/tests/master.py
+++ b/bitten/tests/master.py
@@ -26,7 +26,7 @@
 from bitten.master import BuildMaster
 from bitten.model import BuildConfig, TargetPlatform, Build, BuildStep, \
                          BuildLog, Report, schema
-from bitten.slave import PROTOCOL_VERSION
+from bitten import PROTOCOL_VERSION
 
 class BuildMasterTestCase(unittest.TestCase):
 

--- a/doc/install.txt
+++ b/doc/install.txt
@@ -13,8 +13,9 @@
 =============
 
 Bitten is written in Python, so make sure that you have Python installed.
-You'll need Python 2.4 or later. Also, make sure that setuptools_, version 0.6a2
-or later, is installed.
+You'll need Python 2.4 or later for running build slave, while the Trac plugin
+(master) should still work using Python 2.3. Also, make sure that setuptools_,
+version 0.6a2 or later, is installed.
 
 .. _setuptools: http://peak.telecommunity.com/DevCenter/setuptools