wrote change log for next release.

Choosing memory manager type based on the actual python version for best efficiency

Author: Byron

doc/source/changes.rst

@@ -2,6 +2,11 @@
 Changelog
 #########
 
+*****
+0.5.4
+*****
+* Adjusted implementation to use the SlidingMemoryManager by default in python 2.6 for efficiency reasons. In Python 2.4, the StaticMemoryManager will be used instead.
+
 *****
 0.5.3
 *****

gitdb/util.py

@@ -31,7 +31,11 @@
 
 # initialize our global memory manager instance
 # Use it to free cached (and unused) resources.
-mman = SlidingWindowMapManager()
+if sys.version_info[1] < 6:
+	mman = StaticWindowMapManager()
+else:
+	mman = SlidingWindowMapManager()
+#END handle mman
 
 try:
     import hashlib