Bumped the version in configure.ac for 0.26.x branch.
diff --git a/configure.ac b/configure.ac
index 1d33d24..ae436e2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,7 +18,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ([2.61])
-AC_INIT([mesos], [0.26.1])
+AC_INIT([mesos], [0.26.2])
 
 # Have autoconf setup some variables related to the system.
 AC_CANONICAL_HOST