No Market Share movement for WordPress 3.6 yet sorry.
Get a list of 792,724 websites using WordPress 3.6 which includes location information, hosting data, contact details, 84,807 currently live websites
which includes 12,766 domains that redirect to sites in the list. 720,683 sites that used this technology previously and 28,761 websites in the United States currently using WordPress 3.6.
Distribution of locations of all WordPress 3.6 customers we've ever tracked.