AMD has released a new set of drivers ready for mining cards, with the new Radeon Software Crimson ReLive Edition 17.7.1 drivers. The new drivers also include some fixes for games and applications.
There have been new AMD Radeon RX 470-based mining cards released in the last few weeks, with the new 17.7.1 drivers supporting both the RX 460 and RX 470-based mining cards. There hasn't been a RX 460-based mining card announced, but there's support for it in the driver, so expect an announcement any minute now.
The new 17.7.1 drivers also include official support for the Radeon RX 550 and RX 560, cards that were launched in April. There are some issues fixed with Adobe Lightroom CC 2015 10, as well as some improvements to games like the crashing errors with Radeon 300 series cards running Final Fantasy XIV, and Little Nightmares. Radeon R9 380 series owners shouldn't have any issues with Tekken 7, either.