NEW YORK--(BUSINESS WIRE)--The IAB Technology Laboratory introduced a revision to the “IAB Digital Video In-Stream Ad Format Guidelines and Best Practices” for public comment, an upgrade that will allow digital video in-stream ads to render beautifully across high-definition screens of all sizes. Aligning with recent updates to the IAB Video Suite technical specifications, this revised set of digital video ad formats and creative submission guidelines further enables cross-screen ad portability