diff --git a/conf.py b/conf.py
index 753468d0e93..c37d64b8eba 100644
--- a/conf.py
+++ b/conf.py
@@ -36,7 +36,7 @@
 rst_epilog =  '.. |version| replace:: %s' % version
 
 # building the versions list
-version_start = 25		# THIS IS THE SUPPORTED VERSION NUMBER
+version_start = 26		# THIS IS THE SUPPORTED VERSION NUMBER
 version_stable = 27		# INCREASE THIS NUMBER TO THE LATEST STABLE VERSION NUMBER
 
 # Also search for "TODO ON RELEASE" in the rst files