According to the NASA web site, the uncrewed launch of the Orion Multi-Purpose Crew Vehicle has slipped to no earlier than December.
The Orion team continues to work toward completing the spacecraft to be ready for a launch in September-October. However, the initial timeframe for the launch of Exploration Flight Test-1 (EFT-1) has shifted from September-October to early December to support allowing more opportunities for launches this year. Completing the spacecraft according to the original schedule will allow many engineers and technicians to continue transitioning to work on the Orion spacecraft that will fly atop the agency's Space Launch System. It will also ensure that NASA's partners are fully ready for the launch of EFT-1 at the earliest opportunity on the manifest.