Superman, your days are re-numbered! DC Comics today announced that it will begin new numbering for its superhero comics this summer, as well as begin releasing digital editions on the same day print editions are available in stores. The renumbering effort for the publisher’s 52 “DC Universe” titles (i.e., its core superhero business) will start August 31 with Justice League No. 1, which marks the debut of superstar creative team Geoff Johns and Jim Lee. It coincides with the conclusion of its highly-touted “Flashpoint” storyline starring The Flash, an epic mystery concerning an apparent timeline reboot. While it’s not uncommon for publishers to renumber a title (usually in tandem with a creative reboot designed to goose sales), it’s believed that DC’s initiative marks the first time a publisher has renumbered all of its books at once. DC will begin offering day-and-date digital distribution of its titles on August 31 as well.