X-Plane 11.05 release candidate Two is now the official version of X-Plane 11. You'll be prompted to auto-update.
11.05's purpose in life was to release new gateway airports. We will do another release of gateway airports for X-Plane 11.10, which we are working on now.
When Will X-Plane 11.10 Be Released?
I don't know! I don't have a crystal ball. How can it be that I am tasked with making the final release-not-release decision and I don't know when the first beta will be released?
X-Plane 11.10 is limited by bugs, not a particular release date. In particular, we intend to ship X-Plane 11.10 with our latest rendering code, and our latest rendering code currently has a few serious bugs. So it will be released when we fix these bugs, but I can't predict how long it will take to fix them.
Some of our releases are date driven, and we remove functionality to hit the date. Other releases are feature driven, and we release when the bugs are fixed. 11.10 is in that later category.
We'll post a lot more details on 11.10 once we get into beta; 11.10 is going to be a long beta, to give third parties time to help us flush out compatibility bugs. We've changed a lot of code.
11.10 will (as planned) ship without VR support, but will contain all of the rendering engine changes necessary to make VR work. We are working on VR in parallel, and can hopefully public beta VR as soon as 11.10 is out of beta.