Just leaked Windows 10 build 10176, which is generally referred to as the first RTM Candidate. THE version that leaked is at Chinese and released in ISO format.
There are currently no more information for this particular build.
Of course, once the Chinese version has leaked, we will see the English build very soon, from which we will also publish download links.
Build 10.176 could be the first RTM candidate, and if that is true, it will be fairly stable and reliable.
Recall that RTM was originally scheduled for this weekteam, but sources within the company said that the Redmond sees the middle of next week as a possible release date.