On 21-Jan-2016 Coq 8.5 has been released, with an unusually long distance of about 3.5 years to Coq 8.4.
Coq 8.5 is notable for having a little bit of PIDE (Prover IDE) support (by Enrico Tassi), without using that name nor the Scala-based PIDE library of Isabelle. It is all based on OCaml, and connects to the regular CoqIde frontend.